debug: added a lot to pinpoint the url issue.

## Types of changes

- [x] I have read the **CONTRIBUTING** document.
- [x] My code follows the code style of this project.
- [ ] I have updated the documentation accordingly.
- [x] I have added tests to cover my changes.
- [x] All new and existing tests passed.
- [x] This is **NOT** translation related.

This is implements feature #131 and it will allow implementing #132
With this, public mode functions perfectly and also has source filtering.

Co-authored-by: davidoskky <davidoskky@yahoo.it>
Reviewed-on: https://gitea.amine-louveau.fr/Louvorg/ReaderForSelfoss-multiplatform/pulls/133
Co-authored-by: davidoskky <davidoskky@hidden.hidden>
Co-committed-by: davidoskky <davidoskky@hidden.hidden>

CHANGELOG.md

@@ -1,3 +1,27 @@
+**v123030681**
+
+- fix: Unread and starred can be null.
+- Fixed version number issue.
+- Changelog for v123030621 [CI SKIP]
+
+--------------------------------------------------------------------
+
+**v123030621**
+
+- fix: url required issue.
+- fix: Canvas reused issue.
+- Changelog for v123020572 [CI SKIP]
+
+--------------------------------------------------------------------
+
+**v123020572**
+
+- fix: requirecontext issues ?
+- debug: activity not found exception.
+- Changelog for v123020571 [CI SKIP]
+
+--------------------------------------------------------------------
+
 **v123020571**
 
 - chore: remove errors logging.