[frontend] When I select injects and export them, the entire list is exported

[isselparra]

Proposed changes

• [frontend] allow only selected injects to be exported

Related issues

• Closes When I select injects and export them, the entire list is exported #2111

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality
• For bug fix -> I implemented a test that covers the bug

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 35.11%. Comparing base (fb0fab9) to head (e99ee17).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #2113   +/-   ##
=========================================
  Coverage     35.11%   35.11%           
  Complexity     1418     1418           
=========================================
  Files           535      535           
  Lines         16187    16187           
  Branches       1037     1037           
=========================================
  Hits           5684     5684           
  Misses        10209    10209           
  Partials        294      294           

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