xwayland: Automaximization support

WIP because:

• it still needs to check the window type in order to not maximize things it shouldn't (like tooltips or menus)
• there appears to be some race condition visible in Anbox that sometimes results in the window state being desynchronized between xwm and phoc (or at least I assume that's what happens there)

added 4 commits

• a3a6a25f - seat: Check whether moving and resizing is allowed
• 01b7ecb6 - xwayland: Don't apply size constraints to maximized windows
• 7286f588 - xwayland: Correctly handle windows that are maximized on map
• 16d1c271 - xwayland: Implement automaximization

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added 1 commit

• f5bbca7f - xwayland: Automaximization support

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added 1 commit

• 6e47a4d1 - xwayland: Automaximization support

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unmarked as a Work In Progress

added 7 commits

• 6e47a4d1...eec6a66a - 3 commits from branch Librem5:master
• 721ee3e7 - seat: Check whether moving and resizing is allowed
• f755059f - xwayland: Don't apply size constraints to maximized windows
• 6bb527e9 - xwayland: Correctly handle windows that are maximized on map
• 5310cc7c - xwayland: Automaximization support

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Should be ready now.

Besides the above this looks good to me and handling all windows consistently sure is an improvement.

added 4 commits

• a72667c1 - xwayland: Don't apply size constraints to maximized windows
• 3b18ddd8 - xwayland: Correctly handle windows that are maximized on map
• 0ac3d997 - xwayland: Automaximization support
• 369c2244 - seat: Check whether moving and resizing is allowed

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added 2 commits

• 4e90d9ed - xwayland: Automaximization support
• a2943fa1 - seat: Check whether moving and resizing is allowed

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resolved all threads

ETOOMANYCODESTYLES :D Updated.

added 7 commits

• a2943fa1...eec6a66a - 3 commits from branch Librem5:master
• 8079bddf - xwayland: Don't apply size constraints to maximized windows
• d921747e - xwayland: Correctly handle windows that are maximized on map
• 1af06a94 - xwayland: Automaximization support
• 49e5bcd1 - seat: Check whether moving and resizing is allowed

Compare with previous version

looks good to me besides the above minor nit.

added 4 commits

• 15dff45a - xwayland: Don't apply size constraints to maximized windows
• 1fc8b5ec - xwayland: Correctly handle windows that are maximized on map
• 85c20cd3 - xwayland: Automaximization support
• 03e2e2e9 - seat: Check whether moving and resizing is allowed

Compare with previous version

resolved all threads

merged

thanks!