- The editor is accessible via the pause menu and the settings menu.
- Buttons can be moved via drag & drop.
- Buttons can be added/removed. The grid menu added by #14918 is used to show
all buttons not included in the layout.
- Custom layouts are responsive and adapt to changed screen size / DPI /
hud_scaling.
- The layout is saved as JSON in the "touch_layout" setting.
This in particular fixes incorrect event propagation to menus that
are no longer shown, such as the key change menu when opened within
the settings tab.
This loop makes multiple passes over m_stack (type std::list) in order to remove all elements with a specified value. Replacing the loop with a call to std::list::remove does the same job, but in only one pass.
