Adding functional usage of client self updater #10

- Added update command to the server
- Server can request nodes update
- Nodes have an 'endpoint' for updating
- Fixes to the install script

client/modules/selfUpdater.mjs

@@ -24,8 +24,10 @@ export const checkForUpdates = async () => {
             console.log('Update completed successfully. Restarting the application...');
             // Restart the application to apply the updates
             restartApplication();
+            return true
         } else {
             console.log('The application is up to date.');
+            return false
         }
     } catch (error) {
         console.error('Error checking for updates:', error);