couple of small fixes for text editor (#5155)

# Description of Changes

- Workbench.tsx: Allow PDF text editor to handle it's own custom state
(this is a bit of a hotfix, we're going to handle the PDF text editors
file upload flow better in a future PR).
- PdfTextEditorView.tsx: Added a dropzone and some helper text to upload
the first file.
- PdfTextEditorView.tsx: Hide document view when isConverting is true.
Prevents showing stale content from previous file during conversion.
- useTranslatedToolRegistry.tsx: Moved PDF Text Editor to top of
Recommended tools list. Increased visibility of the new feature.
- PdfTextEditor.tsx: Removed auto-navigation to PDF Editor workbench on
file selection. Stops the "jumpy" behavior when selecting files.
- HomePage.tsx: Check specifically for pdfTextEditor tool instead of any
custom workbench. Prevents auto-switch to viewer when uploading files
while in PDF Text Editor.

<img width="2056" height="1073" alt="Screenshot 2025-12-03 at 6 01
14 PM"
src="https://github.com/user-attachments/assets/dfc63a46-7991-486c-ba00-0ce7637502f5"
/>


---

## 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.

---------

Co-authored-by: Anthony Stirling <[email protected]>

frontend/public/locales/en-GB/translation.toml

@@ -5991,6 +5991,7 @@ earlyAccess = "Early Access"
 reset = "Reset Changes"
 downloadJson = "Download JSON"
 generatePdf = "Generate PDF"
+saveChanges = "Save Changes"
 
 [pdfTextEditor.options.autoScaleText]
 title = "Auto-scale text to fit boxes"
@@ -6028,6 +6029,8 @@ alpha = "This alpha viewer is still evolving—certain fonts, colours, transpare
 [pdfTextEditor.empty]
 title = "No document loaded"
 subtitle = "Load a PDF or JSON file to begin editing text content."
+dropzone = "Drag and drop a PDF or JSON file here, or click to browse"
+dropzoneWithFiles = "Select a file from the Files tab, or drag and drop a PDF or JSON file here, or click to browse"
 
 [pdfTextEditor.welcomeBanner]
 title = "Welcome to PDF Text Editor (Early Access)"