Frontend Refactor + Bug Fixes

* merge category and tag selector

* unifiy category selector

* add hint

* spacing

* fix nextcloud migration

* simplify email validator #261

* formatting

* cleanup

* auto-gen

* format

* update run script

* unified category/tag selector

* rename component

* Add advanced search link

* remove old code

* convert keywords to tags

* add proper behavior on rename

* proper image name association on rename

* fix test cleanup

* changelog

* set docker comppand

* minify on migration

Co-authored-by: hay-kot <hay-kot@pm.me>

frontend/src/mixins/validators.js

@@ -3,7 +3,7 @@ export const validators = {
     return {
       emailRule: v =>
         !v ||
-        /^\w+([.-]?\w+)*@\w+([.-]?\w+)*(\.\w{2,3})+$/.test(v) ||
+        /^[^@\s]+@[^@\s.]+.[^@.\s]+$/.test(v) ||
        this.$t('user.e-mail-must-be-valid'),
 
       existsRule: value => !!value || this.$t('general.field-required'),