GitLab

(cherry picked from commit 94ae2eca)

(cherry picked from commit 8eb3dec3)

Closes issue #373 "Move separator in hamburger menu one up, to be consistent with other GNOME applications"

This basically reverts 6f4fb567,
returning to Meson's `python` module, since the `python-3.8-embed`
dependency obviously only works with Python 3.8.

We're using the `embed` kwarg which was added in Meson 0.53.0, so we
need to bump the minimum `meson_version`.

Fixes #491

This reverts commit 9e66cdfb.

This reverts commit 9827ed69.

Remove object from project before extracting children since we clear up
GladeWidget back references for internal children.

Fix issue #484 "Crash with GtkRecentChooserDialog"

Closses issue #371 "Glade user survey not working (TLS error)"