misc: allow the FE to recieve banner messages from the kernel

[mscolnick]

This does nothing on its own. Ideally this is paired with the BE notifying the user when there are missing dependencies

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (187f075) 64.25% compared to head (4bdea6e) 64.25%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #585   +/-   ##
=======================================
  Coverage   64.25%   64.25%           
=======================================
  Files         130      130           
  Lines        6370     6370           
  Branches     1285     1285           
=======================================
  Hits         4093     4093           
  Misses       2096     2096           
  Partials      181      181           

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