fix: put call to report launch success on bg thread.

[bryanoltman]

Description

We were previously making a blocking network request on the main thread. This moves that call to a background thread.

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.05% 🎉

Comparison is base (7417429) 97.43% compared to head (0595ca1) 97.48%.

❗ Current head 0595ca1 differs from pull request most recent head d02263c. Consider uploading reports for the commit d02263c to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #72      +/-   ##
==========================================
+ Coverage   97.43%   97.48%   +0.05%     
==========================================
  Files           9        9              
  Lines        1829     1830       +1     
==========================================
+ Hits         1782     1784       +2     
+ Misses         47       46       -1     

Files Changed	Coverage Δ
library/src/cache.rs	93.47% <100.00%> (+0.04%)	⬆️
library/src/network.rs	99.00% <100.00%> (-0.02%)	⬇️
library/src/updater.rs	97.70% <100.00%> (+0.28%)	⬆️

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