fix(NcAppNavigation): Fix sidebar position in RTL and mobile mode.

[falghamdi125]

☑️ Resolves

• Fix [Bug]: App navigation sidebar is always expanded in RTL & Mobile mode affecting files app #6217

So, in RTL mode, the sidebar slides from the right not the left like in LTR mode.
Now, we have to adjust apps headers margins and padding for RTL mode to accomedate the toggle button that'll be displayed on the right.

🖼️ Screenshots

🏚️ Before	🏡 After

Best

[ShGKme]

Thanks

[ShGKme]

@susnux @skjnldsv Do you understand, how to trigger CI?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.30%. Comparing base (a4bb820) to head (2ed3522).
Report is 104 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6260      +/-   ##
==========================================
- Coverage   42.62%   42.30%   -0.33%     
==========================================
  Files         154      154              
  Lines        4040     3988      -52     
  Branches     1017     1023       +6     
==========================================
- Hits         1722     1687      -35     
+ Misses       2206     2190      -16     
+ Partials      112      111       -1     

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