implement card reference widget, fix DeckIcon.vue

bring back eslint and stylelint on compilation, fix almost all warnings, ignore some

Signed-off-by: Julien Veyssier <eneiluj@posteo.net>

src/init-talk.js

@@ -23,9 +23,9 @@
 import Vue from 'vue'
 import { generateUrl } from '@nextcloud/router'
 
-import CardCreateDialog from './CardCreateDialog'
-import { buildSelector } from './helpers/selector'
-import './init-collections'
+import CardCreateDialog from './CardCreateDialog.vue'
+import { buildSelector } from './helpers/selector.js'
+import './init-collections.js'
 
 // eslint-disable-next-line
 __webpack_nonce__ = btoa(OC.requestToken);