* fix(server) optimize number of sql calls for GET /api/albums
remove unnecessary join for getMetadataForIds
remove separate call to getLastUpdatedAssetForAlbumId
* fix(server) remove unnecessary getLastUpdatedAssetForAlbumId call for GET /api/album/:id
also remove getLastUpdatedAssetForAlbumId query as it is no longer referenced
* fix(server): correct lastModifiedAssetTimestamp return type + formatting and typing
* chore(server): address type issue with tests found via npm:check
tests & lint still pass before this commit.