feat: Add UI to manage web widget allowed domains (#12495)

## Summary
- add allowed domains controls in the web widget configuration page.

<img width="1064" height="699" alt="Screenshot 2025-09-23 at 8 52 21 PM"
src="https://github.com/user-attachments/assets/8afd60b6-c81d-4f52-9cbe-07e70ad003d2"
/>


fixes:
https://linear.app/chatwoot/issue/CW-5661/add-the-options-for-configure-allowed-domains-for-web-widget

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>
Co-authored-by: iamsivin <iamsivin@gmail.com>

app/javascript/dashboard/i18n/locale/en/inboxMgmt.json

@@ -618,6 +618,11 @@
     "SETTINGS_POPUP": {
       "MESSENGER_HEADING": "Messenger Script",
       "MESSENGER_SUB_HEAD": "Place this button inside your body tag",
+      "ALLOWED_DOMAINS": {
+        "TITLE": "Allowed Domains",
+        "SUBTITLE": "Add wildcard or regular domains separated by commas (leave blank to allow all), e.g. *.chatwoot.dev, chatwoot.com.",
+        "PLACEHOLDER": "Enter domains separated by commas (eg: *.chatwoot.dev, chatwoot.com)"
+      },
       "INBOX_AGENTS": "Agents",
       "INBOX_AGENTS_SUB_TEXT": "Add or remove agents from this inbox",
       "AGENT_ASSIGNMENT": "Conversation Assignment",