Remove "hard coding" of minimize, maximize buttons

[jpgaubier]

Is there an existing issue for this?

• I have searched the existing issues and found none matching what I'm reporting.

Is the feature related to a problem or existing issue?

Minimize and Maximize buttons persist in App Center even when window decorations are removed systemwide.

Describe the feature, why the feature matters to you, and what benefits the feature will bring about.

Minimize and Maximize buttons persist in App Center even when window decorations are removed systemwide or GNOME defaults are applied. App Center is one of the few apps I've encountered where these buttons appear to be "hard coded" into the app and appear regardless. It would help App Center fit in better with the rest of the DE if the window functions/decorations followed the OS-level setting.

Describe any alternatives you've considered.

No response

Additional context

Sorry, I have no developer experience so my terminology might be off.

[d-loose]

Upstream issue: ubuntu/yaru.dart#532