Prevent filtered delete from deleting journal (#935)

* Prevent filtered deletion from deleting entire journal #932 and add lots of deletion tests
* Undo removal of deletion feature
* Use more performant deletion

features/data/configs/deletion_filters.yaml

@@ -0,0 +1,12 @@
+default_hour: 9
+default_minute: 0
+editor: ""
+encrypt: false
+highlight: true
+journals:
+  default: features/journals/deletion_filters.journal
+linewrap: 80
+tagsymbols: "@"
+template: false
+timeformat: "%Y-%m-%d %H:%M"
+indent_character: "|"