Store and plugin installation visual improvements (#343)

* Redesign store, add comments for filtering

* Improve installation/uninstallation modals

* Fix store comment to be easier to fix

* Add source code info to about page

frontend/tsconfig.json

@@ -18,6 +18,6 @@
     "allowSyntheticDefaultImports": true,
     "skipLibCheck": true
   },
-  "include": ["src"],
+  "include": ["src", "index.d.ts"],
   "exclude": ["node_modules"]
 }