Add Livestreamfails tests

[pajlada]

Pull request checklist:

• CHANGELOG.md was updated, if applicable

Description

[codecov]

Codecov Report

Merging #297 (202f025) into master (564697f) will increase coverage by 2.33%.
The diff coverage is 94.11%.

@@            Coverage Diff             @@
##           master     #297      +/-   ##
==========================================
+ Coverage   43.93%   46.27%   +2.33%     
==========================================
  Files          96       97       +1     
  Lines        3041     3043       +2     
==========================================
+ Hits         1336     1408      +72     
+ Misses       1684     1612      -72     
- Partials       21       23       +2     

Impacted Files	Coverage Δ
internal/resolvers/livestreamfails/clip_loader.go	87.23% <80.00%> (+87.23%)	⬆️
internal/resolvers/livestreamfails/clip_context.go	100.00% <100.00%> (ø)
...nternal/resolvers/livestreamfails/clip_resolver.go	100.00% <100.00%> (+65.21%)	⬆️
internal/resolvers/livestreamfails/initialize.go	100.00% <100.00%> (ø)

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[pajlada]

Looks good to me!