Fixing UI bugs with Chat Preview

[rapterjet2004]

• fixes The interface is distorted after searching #5118

use keyword 'message'
UI glitch when the App theme doesn't match the system theme. Example: Dark app theme, with light system theme

Quick fix: Set theme in app settings to system default

🖼️ Screenshots

🚧 TODO

• Fix bubble color
• Fix sticky header
• Fix link rendering
• Fix time formatting with pdf

🏁 Checklist

• ⛑️ Tests (unit and/or integration) are included or not needed
• 🔖 Capability is checked 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?)

[github-actions]

Codacy

Lint

Type	master	PR
Warnings	96	97
Errors	0	0

SpotBugs

Category	Base	New
Bad practice	6	6
Correctness	16	16
Dodgy code	61	61
Internationalization	3	3
Malicious code vulnerability	3	3
Performance	4	4
Security	1	1
Total	94	94

Lint increased!

[github-actions]

APK file: https://www.kaminsky.me/nc-dev/android-artifacts/5140-talk.apk



To test this change/fix you can simply download above APK file and install and test it in parallel to your existing Nextcloud Talk app.