Add read it later functionality (#304)

* Allow marking bookmarks as unread

* Restructure navigation to include preset filters

* Add mark as read action

* Improve description

* Highlight unread bookmarks visually

* Mark bookmarks as read by default

* Add tests

* Implement toread flag in importer

* Implement admin actions

* Add query tests

* Remove untagged link

* Update api docs

* Reduce height of description textarea

Co-authored-by: Sascha Ißbrücker <sascha.issbruecker@gmail.com>

bookmarks/queries.py

@@ -60,6 +60,11 @@ def _base_bookmarks_query(user: User, query_string: str) -> QuerySet:
         query_set = query_set.filter(
             tags=None
         )
+    # Unread bookmarks
+    if query['unread']:
+        query_set = query_set.filter(
+            unread=True
+        )
 
     # Sort by date added
     query_set = query_set.order_by('-date_added')
@@ -102,9 +107,11 @@ def _parse_query_string(query_string):
 
     # Special search commands
     untagged = '!untagged' in keywords
+    unread = '!unread' in keywords
 
     return {
         'search_terms': search_terms,
         'tag_names': tag_names,
         'untagged': untagged,
+        'unread': unread,
     }