Many changes and new features:

* Make reminders be its own dataset rather than tied to current string.
 * Add support for repeated reminders
 * Make reminders be a feature that can be turned on and off
 * Add syntax highlighting for code blocks (right-click to set it)
 * Add a Pomodoro-style timer for measuring time spent on a task (stopping the timer offers to log it to Time Log)
 * Add ability to create markdown tables. Right-click to edit the table in a friendlier table dialog

tests/test_main_window.py

@@ -25,6 +25,11 @@ def test_main_window_loads_and_saves(qtbot, app, tmp_db_cfg, fresh_db):
     s.setValue("ui/idle_minutes", 0)
     s.setValue("ui/theme", "light")
     s.setValue("ui/move_todos", True)
+    s.setValue("ui/tags", True)
+    s.setValue("ui/time_log", True)
+    s.setValue("ui/reminders", True)
+    s.setValue("ui/locale", "en")
+    s.setValue("ui/font_size", 11)
 
     themes = ThemeManager(app, ThemeConfig(theme=Theme.LIGHT))
     w = MainWindow(themes=themes)