feat: add Bates numbering tool with PDF processing capabilities

- Implemented bates-numbering-page.ts for handling Bates numbering logic.
- Created a new HTML page for Bates numbering functionality.
- Added style presets and file handling for multiple PDF uploads.
- Integrated user interface elements for file selection, style customization, and preview.
- Enhanced main.ts to support collapsible categories and compact mode for tool grid.
- Updated types for Bates numbering in bates-numbering-type.ts.
- Registered the new tool in tools.html and updated routing in vite.config.ts.

public/locales/en/tools.json

@@ -86,6 +86,10 @@
     "name": "Page Numbers",
     "subtitle": "Insert page numbers into your document."
   },
+  "batesNumbering": {
+    "name": "Bates Numbering",
+    "subtitle": "Add sequential Bates numbers across one or more PDF files."
+  },
   "addWatermark": {
     "name": "Add Watermark",
     "subtitle": "Stamp text or an image over your PDF pages."