v3.0.0-0

Refactoring several internal codes to improve maintenance ability.

• downgrade np 2b6d0b6
• Merge pull request #35 from wpkyoto/upgrade/stencil-3 530e260
• Merge branch 'main' of github.com:wpkyoto/stripe-pwa-elements into upgrade/stencil-3 41f9e4b
• fix: rename eslint rule from @Stencil -> @stencil-community b605720
• fix: package dependencies 86dcdff
• fix: test/build errors 400910c
• upgrade: stencil 2 -> 3 224f9c3

v2.1.0...v3.0.0-0