Modernize debug window a little

Review Request #1715 — Created Sept. 4, 2022 and submitted Sept. 6, 2022, 1:23 a.m.

Description

Convert GtkComboBox to GtkDropDown.

Drop the toolbar pref, as it was not being used (and hiding the toolbar would make for a somewhat useless window anyway).

Inline the tag table, as <property> can now contain children, and drop unused ids.

Testing Done

Opened debug window, picked different filter levels, and typed in a regex or two.

Commits

Summary
Modernize debug window a little

Screenshots

Issues

Description	From	Last Updated

Fix typo

		Convert `GtkComboBox` to `GtkDropDown`.

		Drop the `toolbar` pref, as it was not being used (and hiding the toolbar would make for a somewhat useless window anyway).

~		Inline the tag table, as `<property>` can no contain children, and drop unused `id`s.
	~	Inline the tag table, as `<property>` can now contain children, and drop unused `id`s.

Ship it!

You have a pending review.