Window decorations and sidebar width are incorrect when using left sided titlebar buttons

[ex-nix]

Please include (to the best of your knowledge) the following information:

Tangram version

2.0

Linux distribution

Garuda Linux

Flatpak version

Flatpak 1.15.1

Desktop environment

Plasma 5.26.5 on Wayland

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When having the titlebar buttons on the left side of the window it breaks the look and feel of Tangram.

Compare this with how it is supposed to look like:

Here is a screenshot of my Plasma settings which are causing this behaviour:

Let me know if you need more information 👍

[sonnyp]

Should be solved in Tangram 3.0