UI: Undo/Redo Properties and Filters

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Implements undo/redo for both properties and filters. Works by creating
a new callback that gets called to save undo/redo states after a timer
is fired. Also disabled undo/redo until the actions have completed to
prevent a user from being able to disrupt the stack by perfoming actions
before others have finished.

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Gitea Version: 1.28.0+dev-477-g8b6ad49a5f