fix(scene): prevent close event from bypassing floating panels

[dlyongemallo]

No description provided.

[Copilot]

Pull request overview

This PR adjusts Diffview’s close-event handling so that when a floating panel is focused, the view itself doesn’t get closed inadvertently. It does this by changing listener initialization order and guarding the view close action when the active window is a float.

Changes:

• Prevent the view-level close listener from closing the entire view when the current window is a floating window.
• Initialize view event listeners earlier in post_open() so panel-level close handlers can take precedence.
• Apply the same close-guard behavior in both DiffView and FileHistoryView listener sets.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
lua/diffview/scene/views/file_history/listeners.lua	Guard view close when a floating window is focused.
lua/diffview/scene/views/file_history/file_history_view.lua	Move init_event_listeners() earlier in post_open() for correct close-handler precedence.
lua/diffview/scene/views/diff/listeners.lua	Guard view close when a floating window is focused.
lua/diffview/scene/views/diff/diff_view.lua	Move init_event_listeners() earlier in post_open() for correct close-handler precedence.

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