🌐 Sync Translations + Update README Progress Table (#3446)

### Description of Changes

This Pull Request was automatically generated to synchronize updates to
translation files and documentation. Below are the details of the
changes made:

#### **1. Synchronization of Translation Files**
- Updated translation files (`messages_*.properties`) to reflect changes
in the reference file `messages_en_GB.properties`.
- Ensured consistency and synchronization across all supported language
files.
- Highlighted any missing or incomplete translations.

#### **2. Update README.md**
- Generated the translation progress table in `README.md`.
- Added a summary of the current translation status for all supported
languages.
- Included up-to-date statistics on translation coverage.

#### **Why these changes are necessary**
- Keeps translation files aligned with the latest reference updates.
- Ensures the documentation reflects the current translation progress.

---

Auto-generated by [create-pull-request][1].

[1]: https://github.com/peter-evans/create-pull-request

---------

Co-authored-by: stirlingbot[bot] <195170888+stirlingbot[bot]@users.noreply.github.com>

src/main/resources/messages_bg_BG.properties

@@ -364,6 +364,9 @@ home.compressPdfs.title=Компресиране
 home.compressPdfs.desc=Компресирайте PDF файлове, за да намалите размера на файла.
 compressPdfs.tags=мачкам,малък,мъничък
 
+home.unlockPDFForms.title=Unlock PDF Forms
+home.unlockPDFForms.desc=Remove read-only property of form fields in a PDF document.
+unlockPDFForms.tags=remove,delete,form,field,readonly
 
 home.changeMetadata.title=Промяна на метаданни
 home.changeMetadata.desc=Промяна/Премахване/Добавяне на метаданни от PDF документ
@@ -377,7 +380,6 @@ home.ocr.title=OCR / Почистващи сканирания
 home.ocr.desc=Почиства, сканира и открива текст от изображения в PDF и го добавя отново като текст.
 ocr.tags=разпознаване,текст,изображение,сканиране,четене,идентифициране,откриване,редактиране
 
-
 home.extractImages.title=Извличане на изображения
 home.extractImages.desc=Извлича всички изображения от PDF и ги записва към архив
 extractImages.tags=изображение,снимка,запазване,архивиране,архив,заснемане,грабване
@@ -607,6 +609,7 @@ login.userIsDisabled=Потребителят е деактивиран, вли
 login.alreadyLoggedIn=Вече сте влезли в
 login.alreadyLoggedIn2=устройства. Моля, излезте от устройствата и опитайте отново.
 login.toManySessions=Имате твърде много активни сесии
+login.logoutMessage=You have been logged out.
 
 #auto-redact
 autoRedact.title=Автоматично редактиране
@@ -1193,6 +1196,10 @@ changeMetadata.selectText.4=Други метаданни:
 changeMetadata.selectText.5=Добавяне на персонализиране метаданни
 changeMetadata.submit=Промени
 
+#unlockPDFForms
+unlockPDFForms.title=Remove Read-Only from Form Fields
+unlockPDFForms.header=Unlock PDF Forms
+unlockPDFForms.submit=Remove
 
 #pdfToPDFA
 pdfToPDFA.title=PDF към PDF/A
@@ -1430,9 +1437,3 @@ cookieBanner.preferencesModal.necessary.description=These cookies are essential
 cookieBanner.preferencesModal.analytics.title=Analytics
 cookieBanner.preferencesModal.analytics.description=These cookies help us understand how our tools are being used, so we can focus on building the features our community values most. Rest assured—Stirling PDF cannot and will never track the content of the documents you work with.
 
-home.unlockPDFForms.title=Unlock PDF Forms
-home.unlockPDFForms.desc=Remove read-only property of form fields in a PDF document.
-unlockPDFForms.tags=remove,delete,form,field,readonly
-unlockPDFForms.title=Remove Read-Only from Form Fields
-unlockPDFForms.header=Unlock PDF Forms
-unlockPDFForms.submit=Remove