FIX: ensure GroupChooser works with localized group names (#30593)

The "Tag Groups Form" component was using group names to handle
permissions. This works just fine when the default locale is "English"
but breaks as soon as it's changed to a different locale.

The fix is to use the group id's for handling the permissions instead of
the group name.

Reported in https://meta.discourse.org/t/221849

app/models/group.rb

@@ -762,6 +762,8 @@ class Group < ActiveRecord::Base
   def self.group_id_from_param(group_param)
     return group_param.id if group_param.is_a?(Group)
     return group_param if group_param.is_a?(Integer)
+    return Group[group_param].id if group_param.is_a?(Symbol)
+    return group_param.to_i if group_param.to_i.to_s == group_param
 
     # subtle, using Group[] ensures the group exists in the DB
     Group[group_param.to_sym].id

app/models/tag_group.rb

@@ -56,9 +56,12 @@ class TagGroup < ActiveRecord::Base
   def self.resolve_permissions(permissions)
     permissions.map do |group, permission|
       group_id = Group.group_id_from_param(group)
-      permission = TagGroupPermission.permission_types[permission.to_sym] unless permission.is_a?(
-        Integer,
-      )
+      permission =
+        if permission.is_a?(Integer)
+          permission
+        else
+          TagGroupPermission.permission_types[permission.to_sym]
+        end
       [group_id, permission]
     end
   end