✨ feat: add new contact form, hero, features, and richtext blocks; implement scroll-reveal action and update styles

- Introduced ContactFormBlock, FeaturesBlock, HeroBlock, and RichtextBlock components.
- Implemented a scroll-reveal action for animations on element visibility.
- Enhanced CSS styles for better theming and prose formatting.
- Added localization support for new components and updated existing translations.
- Created e2e tests for demo pages including contact form validation and navigation.
- Added a video tour showcasing the demo pages and interactions.

package.json

@@ -58,4 +58,4 @@
         "svelte-i18n": "^4.0.1"
     },
     "packageManager": "yarn@4.7.0"
-}
+}