SEO init (#4197)

# Description of Changes
This pull request introduces dynamic document meta tag management and
improves URL routing and tool metadata handling in the frontend. The
most significant changes are the addition of a custom hook to update
document meta tags (including OpenGraph tags) based on the selected
tool, enhancements to the tool selection context for better URL
synchronization, and enrichment of the `Tool` type and tool registry
with more metadata.

**Dynamic document meta management:**

* Added a new `useDocumentMeta` hook that updates the page's `<title>`,
description, and OpenGraph meta tags based on the currently selected
tool, and restores the original values on cleanup.
(`frontend/src/hooks/useDocumentMeta.ts`)
* Integrated `useDocumentMeta` into `HomePageContent` so the document's
meta tags dynamically reflect the selected tool's metadata, improving
SEO and social sharing. (`frontend/src/pages/HomePage.tsx`)
[[1]](diffhunk://#diff-85c26b21681286c20e97a26a4912f0b91812776c9d4d0c54aa541fded2565c7eR2-R8)
[[2]](diffhunk://#diff-85c26b21681286c20e97a26a4912f0b91812776c9d4d0c54aa541fded2565c7eR17)
[[3]](diffhunk://#diff-85c26b21681286c20e97a26a4912f0b91812776c9d4d0c54aa541fded2565c7eR28-R37)

**Tool metadata and context improvements:**

* Enhanced the `Tool` type and tool registry to include `title` and
`description` fields, which are now translated and used throughout the
UI and meta tags. (`frontend/src/types/tool.ts`,
`frontend/src/hooks/useToolManagement.tsx`)
[[1]](diffhunk://#diff-0b557df7bd27ac90cd2f925ddd8ef8096ea2decfaee9a5c12a94dc7a03c64bfaR46)
[[2]](diffhunk://#diff-57f8a6b3e75ecaec10ad445b01afe8fccc376af6f8ad4d693c68cf98e8863273L116-R118)
* Updated the `ToolWorkflowContext` to use the new `Tool` type for
`selectedTool`, replacing the previous `ToolConfiguration` type.
(`frontend/src/contexts/ToolWorkflowContext.tsx`)
[[1]](diffhunk://#diff-9b36e2c06dddbcfba6cb66fd0b303b7860f88ca8b562bb2534af1ab50390d385L6-R8)
[[2]](diffhunk://#diff-9b36e2c06dddbcfba6cb66fd0b303b7860f88ca8b562bb2534af1ab50390d385L72-R72)

**URL routing and synchronization:**

* Implemented logic in `ToolWorkflowContext` to synchronize the selected
tool with the browser URL, initialize tool selection from the URL on
load, and handle browser navigation (back/forward) for tool selection.
(`frontend/src/contexts/ToolWorkflowContext.tsx`)
---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

frontend/public/locales/da-DK/translation.json

@@ -347,7 +347,7 @@
       "title": "Rotér",
       "desc": "Rotér nemt dine PDF'er."
     },
-    "imageToPdf": {
+    "imageToPDF": {
       "title": "Billede til PDF",
       "desc": "Konvertér et billede (PNG, JPEG, GIF) til PDF."
     },
@@ -371,7 +371,7 @@
       "title": "Ændre Tilladelser",
       "desc": "Ændre tilladelserne for dit PDF-dokument"
     },
-    "removePages": {
+    "pageRemover": {
       "title": "Fjern",
       "desc": "Slet uønskede sider fra dit PDF-dokument."
     },
@@ -383,7 +383,7 @@
       "title": "Fjern Adgangskode",
       "desc": "Fjern adgangskodebeskyttelse fra dit PDF-dokument."
     },
-    "compressPdfs": {
+    "compress": {
       "title": "Komprimer",
       "desc": "Komprimer PDF'er for at reducere deres filstørrelse."
     },
@@ -479,7 +479,7 @@
       "title": "Pipeline (Avanceret)",
       "desc": "Kør flere handlinger på PDF'er ved at definere pipeline-scripts"
     },
-    "add-page-numbers": {
+    "addPageNumbers": {
       "title": "Tilføj Sidenumre",
       "desc": "Tilføj Sidenumre gennem hele dokumentet på et bestemt sted"
     },
@@ -487,7 +487,7 @@
       "title": "Auto Omdøb PDF-fil",
       "desc": "Auto omdøber en PDF-fil baseret på dens detekterede overskrift"
     },
-    "adjust-contrast": {
+    "adjustContrast": {
       "title": "Justér Farver/Kontrast",
       "desc": "Justér Kontrast, Mætning og Lysstyrke af en PDF"
     },
@@ -499,7 +499,7 @@
       "title": "Auto Opdel Sider",
       "desc": "Auto Opdel Scannede PDF'er med fysisk scannet side-splitter QR-kode"
     },
-    "sanitizePdf": {
+    "sanitizePDF": {
       "title": "Rens",
       "desc": "Fjern scripts og andre elementer fra PDF-filer"
     },
@@ -523,11 +523,11 @@
       "title": "Få ALLE Oplysninger om PDF",
       "desc": "Henter alle mulige oplysninger om PDF'er"
     },
-    "extractPage": {
+    "pageExtracter": {
       "title": "Udtræk side(r)",
       "desc": "Udtrækker udvalgte sider fra PDF"
     },
-    "PdfToSinglePage": {
+    "pdfToSinglePage": {
       "title": "PDF til Enkelt Stor Side",
       "desc": "Fletter alle PDF-sider til én stor enkelt side"
     },
@@ -543,11 +543,11 @@
       "title": "Manual Redaction",
       "desc": "Redacts a PDF based on selected text, drawn shapes and/or selected page(s)"
     },
-    "tableExtraxt": {
+    "PDFToCSV": {
       "title": "PDF til CSV",
       "desc": "Udtrækker Tabeller fra en PDF og konverterer dem til CSV"
     },
-    "autoSizeSplitPDF": {
+    "split-by-size-or-count": {
       "title": "Auto Opdel efter Størrelse/Antal",
       "desc": "Opdel en enkelt PDF i flere dokumenter baseret på størrelse, sideantal eller dokumentantal"
     },
@@ -563,11 +563,11 @@
       "title": "Tilføj Stempel til PDF",
       "desc": "Tilføj tekst eller tilføj billedstempel på bestemte placeringer"
     },
-    "removeImagePdf": {
+    "removeImage": {
       "title": "Fjern billede",
       "desc": "Fjern billede fra PDF for at reducere filstørrelse"
     },
-    "splitPdfByChapters": {
+    "splitByChapters": {
       "title": "Partitioner PDF efter kapitler",
       "desc": "Partitioner en PDF i flere filer baseret på dens kapitelstruktur."
     },
@@ -575,7 +575,7 @@
       "title": "Validate PDF Signature",
       "desc": "Verify digital signatures and certificates in PDF documents"
     },
-    "replaceColorPdf": {
+    "replace-color": {
       "title": "Replace and Invert Color",
       "desc": "Erstatt farve for tekst og baggrund i en PDF og omgivende farve til fuld farve af PDF for at redusere filstørrelsen."
     }
@@ -1558,4 +1558,4 @@
       }
     }
   }
-}
+}