Core: Clean up debug logging

[ndelangen]

Issue:

• There was a debugger statement left in the postmessage-channel
• The console is noisy because of logging all messages over the channel

What I did

REMOVE debugger statement
CHANGE log statement in channel to use logger.debug
ADD info & debug method to logger

[shilman]

LGTM!

[codecov]

Codecov Report

Merging #5705 into next will increase coverage by 0.01%.
The diff coverage is 50%.

@@            Coverage Diff             @@
##             next    #5705      +/-   ##
==========================================
+ Coverage   33.24%   33.26%   +0.01%     
==========================================
  Files         648      648              
  Lines        9363     9365       +2     
  Branches     1330     1355      +25     
==========================================
+ Hits         3113     3115       +2     
  Misses       5635     5635              
  Partials      615      615

Impacted Files	Coverage Δ
lib/channel-postmessage/src/index.ts	0% <0%> (ø)	⬆️
lib/client-logger/src/index.ts	100% <100%> (ø)	⬆️

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