feat!: lit 3 update, migrate to vitest with browser mode

[motss]

Changes

1. Migrate to vitest with experimental browser mode
   1. Skip some tests that require keyboard events and .dispatchEvent(new KeyboardEvent()) does not work for those tests especially tab to focus, hence causing the code coverage in Codecov to drop below 100%.
2. Replace npm with pnpm
3. Update dependencies to lit@3

[socket-security]

New, updated, and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Packages	Version	New capabilities	Transitives	Size	Publisher
vitest	1.1.3	network, filesystem, shell, environment	+9	17.9 MB	oreanno
playwright	1.40.1	filesystem, shell, environment	+1	10 MB	dgozman-ms
typescript	4.9.5...5.3.3	None	+0/-0	32 MB	typescript-bot

🚮 Removed packages: @material/[email protected], @material/[email protected], @material/[email protected], @material/[email protected], @material/[email protected], @material/[email protected], @open-wc/[email protected], @reallyland/[email protected], @web/[email protected], @web/[email protected], @web/[email protected], @web/[email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected]

[codecov]

Codecov Report

Attention: 31 lines in your changes are missing coverage. Please review.

Comparison is base (3582b2c) 100.00% compared to head (6a0d6d6) 92.82%.
Report is 7 commits behind head on main.

Files	Patch %	Lines
src/date-picker-input/date-picker-input.ts	82.50%	7 Missing and 7 partials ⚠️
src/year-grid/year-grid.ts	57.14%	9 Missing and 3 partials ⚠️
src/month-calendar/month-calendar.ts	90.00%	1 Missing and 3 partials ⚠️
src/date-picker/date-picker.ts	98.78%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##              main     #220      +/-   ##
===========================================
- Coverage   100.00%   92.82%   -7.18%     
===========================================
  Files           58       58              
  Lines         3305      711    -2594     
  Branches       238      155      -83     
===========================================
- Hits          3305      660    -2645     
- Misses           0       32      +32     
- Partials         0       19      +19     

Flag	Coverage Δ
unit_tests	92.82% <88.92%> (-7.18%)	⬇️
unit_tests_helpers	?

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.