fix(editor): file opening flow

[alperozturk96]

Expected flow

#	File Downloaded	Online Editor	Local App	Expected Action
1	✅ Yes	✅ Supported	✅ Available	Open with the local app. Also provide an option to open with the online editor.
2	✅ Yes	✅ Supported	❌ Not Available	Open with the online editor.
3	✅ Yes	❌ Not Supported	✅ Available	Open with the local app only.
4	✅ Yes	❌ Not Supported	❌ Not Available	Show an "Unsupported file" message.
5	❌ No	✅ Supported	✅ Available	Open with the online editor. Don't add extra option in file action.
6	❌ No	✅ Supported	❌ Not Available	Open with the online editor. Don't add extra option in file action.
7	❌ No	❌ Not Supported	✅ Available	First download file then open with the local app.
8	❌ No	❌ Not Supported	❌ Not Available	Show an "Unsupported file" message.

New file action (Open with office)

@kra-mo Feel free to change the wording and suggest a different icon.

[github-actions]

APK file: https://github.com/nextcloud/android/actions/runs/28936971082/artifacts/8166009412
To test this change/fix you can simply download above APK file and install and test it in parallel to your existing Nextcloud app.
(please click on link to get QR code displayed)

[github-actions]

blue-Light-Screenshot test failed, but no output was generated. Maybe a preliminary stage failed.

[github-actions]

master-IT test failed: https://www.kaminsky.me/nc-dev/android-integrationTests/17226-IT-master-12-15