fix(editor): handle mime types

[alperozturk96]

Issue

• To view editor file only mime types should be used optional mime types must excluded.

Changes

• Uses getEditor to view file which only uses mimeTypes not optional ones

[alperozturk96]

/backport to stable-34.0.x

[github-actions]

Codacy

SpotBugs

Category	Base	New
Bad practice	33	33
Correctness	67	67
Dodgy code	211	211
Experimental	1	1
Internationalization	7	7
Malicious code vulnerability	2	2
Multithreaded correctness	31	31
Performance	41	41
Security	16	16
Total	409	409

[github-actions]

APK file: https://github.com/nextcloud/android/actions/runs/27936653940/artifacts/7785864915
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.