refactor: use `//ui/shell_dialogs` on Linux (#42045)

* refactor: use //ui/shell_dialogs on Linux

* fix: add proper filtering

* fix: add support for missing dialog features to //shell_dialogs

* fix: parent_window could be null

* chore: cleanup patch

* fix: use a OnceCallback in the sync implementation

* chore: remove stray debuglog

* Apply suggestions from code review

Co-authored-by: Charles Kerr <charles@charleskerr.com>

* refactor: use settings struct

* fix: show hidden file property checking

* chore: changes from review

* fix: multi selection for dialogs

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Co-authored-by: Charles Kerr <charles@charleskerr.com>