[Update] Plugins: Add error handlings when network is not connected and failed to fetch plugins info.

Also add pending ui(TMP) while fetching.

src-ui/logics/useReceiveRoutes.js

@@ -206,7 +206,12 @@ export const useReceiveRoutes = () => {
         "/set/data/main_window_geometry": () => {},
         "/run/open_filepath_logs": () => console.log("Opened Directory, Message Logs"),
         "/run/open_filepath_config_file": () => console.log("Opened Directory, Config File"),
-        "/run/software_update_info": updateLatestSoftwareVersionInfo,
+        "/run/software_update_info": (payload) => {
+            updateLatestSoftwareVersionInfo(prev => ({
+                is_update_available: payload.is_update_available,
+                new_version: payload.new_version || prev.data.new_version,
+            }));
+        },
         "/run/connected_network": handleNetworkConnection,
 
         // Main Page