Avatar widget should not extend Gtk.Button

[Kekun]

⚠️ Please try to fill in every blank. Keep the information clear and concise.

What should happen:

The clip area of the user's avatar (in the button in the header bar) should be consistent and always show the full avatar.

What happened instead:

The clip area of the user's avatar is too wide when Tootle's window is focused, and too small when the window isn't, making it be cut.

How to reproduce:

1. Ensure the avatar is visible in Tootle's window
2. Toggle the focus between Tootle's main window and another

Screenshots (if applicable):

WTF GitHub doesn't accept videos‽ Uuuh…

Build context:

• Distro: Fedora Silverblue
• App version: 1.0-alpha1 + a few commits, but the issue was there way before
• Build type: Built from Flatpak

Logs:

Nothing that seems relevant.

Additional info (if needed):

Nothing.

[BrainBlasted]

You could use HdyAvatar here in the main window (and in other areas where an Avatar is shown)