chore: Custom Roles to manage permissions [ UI ] (#9865)

In admin settings, this Pr will add the UI for managing custom roles (
ref: https://github.com/chatwoot/chatwoot/pull/9995 ). It also handles
the routing logic changes to accommodate fine-tuned permissions.

---------

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

app/javascript/dashboard/store/modules/auth.js

@@ -66,6 +66,14 @@ export const getters = {
     return currentAccount.role;
   },
 
+  getCurrentCustomRoleId($state, $getters) {
+    const { accounts = [] } = $state.currentUser;
+    const [currentAccount = {}] = accounts.filter(
+      account => account.id === $getters.getCurrentAccountId
+    );
+    return currentAccount.custom_role_id;
+  },
+
   getCurrentUser($state) {
     return $state.currentUser;
   },