Add new search engine that supports logical expressions (and, or, not) (#1198)

* parser implementation

* add support for quoted strings

* add support for tags

* ignore empty tags

* implicit and

* prepare query conversion by disabling tests

* convert query logic

* fix nested combined tag searches

* simplify query logic

* Add special keyword support to parser

* Add special keyword support to query builder

* Handle invalid queries in query builder

* Notify user about invalid queries

* Add helper to strip tags from search query

* Make tag cloud show all tags from search query

* Use new method for extracting tags

* Add query for getting tags from search query

* Get selected tags through specific context

* Properly remove selected tags from complex queries

* cleanup

* Clarify bundle search terms

* Add documentation draft

* Improve adding tags to search query

* Add option to switch back to the old search

bookmarks/migrations/0050_new_search_toast.py

@@ -0,0 +1,34 @@
+# Generated by Django 5.2.5 on 2025-10-05 10:01
+
+from django.contrib.auth import get_user_model
+from django.db import migrations
+
+from bookmarks.models import Toast
+
+User = get_user_model()
+
+
+def forwards(apps, schema_editor):
+
+    for user in User.objects.all():
+        toast = Toast(
+            key="new_search_toast",
+            message="This version replaces the search engine with a new implementation that supports logical operators (and, or, not). If you run into any issues with the new search, you can switch back to the old one by enabling legacy search in the settings.",
+            owner=user,
+        )
+        toast.save()
+
+
+def reverse(apps, schema_editor):
+    Toast.objects.filter(key="new_search_toast").delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookmarks", "0049_userprofile_legacy_search"),
+    ]
+
+    operations = [
+        migrations.RunPython(forwards, reverse),
+    ]