Add web test setup (#597)

* Extract logic from Albums page

- move "albums" page logic to `albums-bloc`
- add types to AlbumCard custom events

* Implement some album-bloc unit-tests

- add libraries for testing
- add album factory
- changes in albums-bloc API

* Add rest of albums-bloc test

Cleanup and remove console logs

* Refactor `isShowContextMenu` writable to derived

web/src/test-data/index.ts

@@ -0,0 +1 @@
+export * from './factories/album-factory';