Allow saving search preferences (#540)

* Add indicator for modified filters

* Rename shared filter values

* Add update search preferences handler

* Separate search and preferences forms

* Properly initialize bookmark search from get or post

* Add tests for applying search preferences

* Implement saving search preferences

* Remove bookmark search query alias

* Use search preferences as default

* Only show save button for authenticated users

* Only show modified indicator if preferences are modified

* Fix overriding search preferences

* Add missing migration

bookmarks/tests/helpers.py

@@ -106,7 +106,7 @@ class BookmarkFactoryMixin:
             tags = []
             if with_tags:
                 tag_name = f'{tag_prefix} {i}{suffix}'
-                tags = [self.setup_tag(name=tag_name)]
+                tags = [self.setup_tag(name=tag_name, user=user)]
             bookmark = self.setup_bookmark(url=url,
                                            title=title,
                                            is_archived=archived,
@@ -139,6 +139,12 @@ class BookmarkFactoryMixin:
         user.profile.save()
         return user
 
+    def get_tags_from_bookmarks(self, bookmarks: [Bookmark]):
+        all_tags = []
+        for bookmark in bookmarks:
+            all_tags = all_tags + list(bookmark.tags.all())
+        return all_tags
+
     def get_random_string(self, length: int = 32):
         return get_random_string(length=length)