Feature: minify javascript & css

[cornejong]

Feature: minify templ scripts, <script> and <style> tags

added -minify-js flag (explicit opt-in) to the generate command to minify templ scripts & <script> tags.
added -minify-css flag (explicit opt-in) to the generate command to minify <style> tags.

minifier: tdewolff/minify/v2

todo

• Add minification to generator for templ script components
• Add -minify-js flag to generator cmd
• Add minification for script tags in templates
• Add minification for style tags in templates
• Tests
• Docs

[cornejong]

It seems like the CI pipeline regenerates the templates.
generate｜ + go run ./cmd/templ generate -include-version=false
But in this case we're missing the --minify-js and minify-css flags.
@a-h, got any thought on how to do this? or should we make these explicit opt-outs instead of opt-ins? (--no-minify-js and --no-minify-css)