Show only offline-available actions when offline in the "create new" menu

[daniele-verducci]

Issue: when the app was offline the bottom sheet was showing all actions for the root directory (also the ones that aren't available offline, like document creators and encrypted folders) and hiding some actions that works also offline for the subdirectories (like scanning a document or uploading from other apps).

This PR makes only offline-available actions visible when offline, and now shown actions matches between root and subfolders.

🖼️ Screenshots

🏚️ Before	🏡 After

🏁 Checklist

• ⛑️ Tests (unit and/or integration) are included or not needed
• 🔙 Backport requests are created or not needed: /backport to stable-xx.x
• 📅 Milestone is set
• 🌸 PR title is meaningful (if it should be in the changelog: is it meaningful to users?)

🤖 AI (if applicable)

• The content of this PR was partly or fully generated using AI (N/A)

[daniele-verducci]

/backport to stable-35.0.x

[github-actions]

APK file: https://github.com/nextcloud/android/actions/runs/34465424570/artifacts/10149165149
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]

APK file: https://github.com/nextcloud/android/actions/runs/34486697039/artifacts/10156868420
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.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...android/ui/fragment/OCFileListBottomSheetDialog.kt	0.00%	12 Missing ⚠️

📢 Thoughts on this report? Let us know!

[github-actions]

📱 QA build

Download	app-qa-debug.apk (134M)
QR code	Open the QR code for this download
Commit	5c294f5
Version	17604
Available until	7 days after this build

The QA build installs alongside a released Nextcloud app, so you can keep
using your existing install while testing.

Downloading the file requires a GitHub account, so open this link on the
device you want to test on, or transfer the APK to it.

[github-actions]

Codacy

SpotBugs

Category	Base	New
Bad practice	32	32
Correctness	58	58
Dodgy code	186	186
Experimental	1	1
Malicious code vulnerability	2	2
Multithreaded correctness	26	26
Performance	37	37
Security	19	18
Total	361	360