refactor: handle errors in the reaction add logger

[kyranet]

Should fix this issue, which can happen due to a bot deleting a message while Skyra is processing the event (and in particular, fetching its reactions):

The format of the logs have changed too, taking advantage of Discord's new message tags and streamlining the embed design with the other log types:

Old	New

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2de2179) 87.96% compared to head (4d1a56e) 87.96%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2581   +/-   ##
=======================================
  Coverage   87.96%   87.96%           
=======================================
  Files          91       91           
  Lines        3655     3656    +1     
  Branches      287      206   -81     
=======================================
+ Hits         3215     3216    +1     
  Misses        436      436           
  Partials        4        4           

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