fix: legal hold modal styling issues

[PatrykBuniX]

Description

Fixes some styling issues with legal hold modal.

Screenshots/Screencast (for UI changes)

Before:
Outilne cut off:

Back arrow misplaced and extra padding in the devices list:

Now:
Outline is in place (used margin instead of internal padding)

Arrow is in place and extra padding got removed

Checklist

• PR has been self reviewed by the author;
• Hard-to-understand areas of the code have been commented;
• If it is a core feature, unit tests have been added;

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 46.14%. Comparing base (cb4d5e8) to head (5bba3aa).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #17604      +/-   ##
==========================================
- Coverage   46.14%   46.14%   -0.01%     
==========================================
  Files         760      760              
  Lines       25012    25012              
  Branches     5724     5724              
==========================================
- Hits        11542    11541       -1     
- Misses      12027    12028       +1     
  Partials     1443     1443