Delete actually selected channel

[christianmemije]

Summary

• Fixes Delete channel doesn't correspond to same channel name #1813

[rtibbles]

Code looks good. Issues if fixed in testing. Excellent.

[codecov-io]

Codecov Report

Merging #1928 into release-v0.5.x will decrease coverage by 0.08%.
The diff coverage is n/a.

@@                Coverage Diff                 @@
##           release-v0.5.x    #1928      +/-   ##
==================================================
- Coverage           74.09%   74.01%   -0.09%     
==================================================
  Files                 154      154              
  Lines                5610     5610              
  Branches              669      669              
==================================================
- Hits                 4157     4152       -5     
- Misses               1342     1344       +2     
- Partials              111      114       +3

Impacted Files	Coverage Δ
kolibri/utils/system.py	32.92% <0%> (-3.66%)	⬇️
kolibri/utils/version.py	70.31% <0%> (-3.13%)	⬇️

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