feat(utils): add URL mapping for CBR conversions

- Added `/cbr-to-pdf` and `/pdf-to-cbr` to `urlMapping`.
- Removed unused CBR-related translation keys from `en-US/translation.json`.

Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>

frontend/public/locales/en-US/translation.json

@@ -2021,10 +2021,6 @@
     "outputFormat": "Output Format",
     "pdfaNote": "PDF/A-1b is more compatible, PDF/A-2b supports more features.",
     "pdfaDigitalSignatureWarning": "The PDF contains a digital signature. This will be removed in the next step.",
-  "cbrOptions": "CBR to PDF Options",
-  "optimizeForEbook": "Optimize PDF for ebook readers (uses Ghostscript)",
-  "cbrOutputOptions": "PDF to CBR Options",
-  "cbrDpi": "DPI for image rendering",
     "sanitize": {
       "submit": "Sanitize PDF",
       "completed": "Sanitization completed successfully",

frontend/src/core/utils/urlMapping.ts

@@ -28,6 +28,8 @@ export const URL_TO_TOOL_MAP: Record<string, ToolId> = {
   '/pdf-to-pdfa': 'convert',
   '/pdf-to-word': 'convert',
   '/pdf-to-xml': 'convert',
+  '/cbr-to-pdf': 'convert',
+  '/pdf-to-cbr': 'convert',
 
   // Security tools
   '/add-password': 'addPassword',