feat: Devtools module

[aklinker1]

Iteration on #744, improves the DX of making changes to the devtools module. HMR for the UI and automatic reload when making changes to the plugin. You have to restart the dev command after making changes to the module, but I don't think you'll have to make any more changes to modules/devtools/index.ts, so this isn't a big problem.

Overview

Goal here is just to put all logs in a single place. We can add more features to the devtools in the future.

Additional Info

• IndexedDB example: https://github.com/wxt-dev/examples/tree/main/examples/favicon-tracker

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.57%. Comparing base (b62af3d) to head (6fb2c9a).
Report is 231 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #749      +/-   ##
==========================================
+ Coverage   87.25%   87.57%   +0.31%     
==========================================
  Files         115      115              
  Lines        9697     9697              
  Branches      956      959       +3     
==========================================
+ Hits         8461     8492      +31     
+ Misses       1223     1192      -31     
  Partials       13       13              

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