build: webpack dev performance optimizations

[erickzhao]

• Enables the filesystem cache for webpack in dev mode
• Disables minification in dev
• Uses style-loader in dev to inline styles into JS

Both cold and warm builds of webpack via yarn start should be reduced.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​style-loader@​4.0.0

View full report

[coveralls]

coverage: 89.386%. remained the same — webpack-perf into main