feat: small improvements to instance info (#591)

* refactor: add typings to backend info

* refactor: write current version to project file

* feat: show location of css override

apps/server/src/models/dataModel.ts

@@ -1,4 +1,5 @@
 import { DatabaseModel } from 'ontime-types';
+import { ONTIME_VERSION } from '../ONTIME_VERSION.js';
 
 export const dbModel: DatabaseModel = {
   rundown: [],
@@ -12,7 +13,7 @@ export const dbModel: DatabaseModel = {
   },
   settings: {
     app: 'ontime',
-    version: 2,
+    version: ONTIME_VERSION,
     serverPort: 4001,
     editorKey: null,
     operatorKey: null,