Update MimeTypes

[AndyScherzinger]

Updated MimeType list to Nc17 list, also implemented 2 minor extensions to support opened issues.

• Resolve nextcloud doesn't know how to open .love files #2073
• Resolve Matlab source files not opened as text files #2081

I vote for simply merging the change (if the code itself is fine and works) and if as discussed we want to move to a mime type mapping fetched from the server than we should do that in a later, separate PR.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@c6f6ce8). Click here to learn what that means.
The diff coverage is 100%.

@@            Coverage Diff            @@
##             master    #4434   +/-   ##
=========================================
  Coverage          ?   17.03%           
  Complexity        ?        3           
=========================================
  Files             ?      363           
  Lines             ?    32043           
  Branches          ?     4511           
=========================================
  Hits              ?     5457           
  Misses            ?    25695           
  Partials          ?      891

Impacted Files	Coverage Δ	Complexity Δ
.../java/com/owncloud/android/utils/MimeTypeUtil.java	86.61% <100%> (ø)	0 <0> (?)

[AndyScherzinger]

@tobiasKaminsky I did some refactoring/extension of thhe mime type detection to not just rely on the OS but also use the ever exisitng local mime type maps as a fallback :)

[AndyScherzinger]

@tobiasKaminsky I shared a folder with you with plain/empty files with all the extensions added via this PR :)

[nextcloud-android-bot]

APK file: https://www.kaminsky.me/nc-dev/android-artifacts/10793.apk



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

[nextcloud-android-bot]

Codacy

271

Lint

Type	master	PR
Warnings	59	59
Errors	0	0

SpotBugs (new)

Warning Type	Number
Bad practice Warnings	27
Correctness Warnings	69
Internationalization Warnings	12
Malicious code vulnerability Warnings	4
Multithreaded correctness Warnings	9
Performance Warnings	118
Security Warnings	47
Dodgy code Warnings	140
Total	426

SpotBugs (master)

Warning Type	Number
Bad practice Warnings	27
Correctness Warnings	69
Internationalization Warnings	12
Malicious code vulnerability Warnings	4
Multithreaded correctness Warnings	9
Performance Warnings	118
Security Warnings	47
Dodgy code Warnings	140
Total	426

[tobiasKaminsky]

/backport to stable-3.8

[backportbot-nextcloud]

backport to stable-3.8 in #4456