Add favicon upload option in admin panel

src/messages/en.json

@@ -731,6 +731,7 @@
         "emailTemplates": "Email templates",
         "theme": "Theme",
         "media": "Media",
+        "favicon": "Favicon",
         "settings": "Settings",
         "backToSite": "Back to site",
         "housekeeping": "Housekeeping",
@@ -1973,6 +1974,21 @@
         "copyUrl": "Copy URL",
         "urlCopied": "URL copied to clipboard"
       },
+      "favicon": {
+        "title": "Favicon",
+        "subtitle": "Upload and manage the site favicon",
+        "current": "Current favicon",
+        "uploadLabel": "Upload favicon",
+        "uploadHint": "PNG, JPEG, GIF, WebP, ICO or SVG. Max 2MB.",
+        "upload": "Upload",
+        "uploading": "Uploading…",
+        "delete": "Remove",
+        "deleting": "Removing…",
+        "saved": "Favicon saved successfully!",
+        "deleted": "Favicon removed successfully!",
+        "error": "Something went wrong",
+        "confirmDelete": "Remove the favicon? The site will no longer show a custom favicon."
+      },
       "settings": {
         "title": "CMS Settings",
         "subtitle": "Manage key/value CMS configuration",