Extensions: change the icon of remote repositories

We were using the WORLD data-block icon before which is misleading.

Ref: !118521

scripts/startup/bl_ui/space_userpref.py

@@ -1597,7 +1597,7 @@ class USERPREF_UL_asset_libraries(UIList):
 class USERPREF_UL_extension_repos(UIList):
     def draw_item(self, _context, layout, _data, item, icon, _active_data, _active_propname, _index):
         repo = item
-        icon = 'WORLD' if repo.use_remote_path else 'DISK_DRIVE'
+        icon = 'NETWORK_DRIVE' if repo.use_remote_path else 'DISK_DRIVE'
         if self.layout_type in {'DEFAULT', 'COMPACT'}:
             layout.prop(repo, "name", text="", icon=icon, emboss=False)
         elif self.layout_type == 'GRID':

source/blender/editors/space_userpref/userpref_ops.cc

@@ -354,7 +354,7 @@ static void PREFERENCES_OT_extension_repo_add(wmOperatorType *ot)
   static const EnumPropertyItem repo_type_items[] = {
       {int(bUserExtensionRepoAddType::Remote),
        "REMOTE",
-       ICON_WORLD,
+       ICON_NETWORK_DRIVE,
        "Add Remote Repository",
        "Add a repository referencing an remote repository "
        "with support for listing and updating extensions"},