feat(hackathon): Improve dark mode and UI/UX in Hackathon website (#64)

* feat: update landing page

* feat: Add favicon and SEO (JSON-LD schema, meta tags)

- Add favicon image
- Add JSON-LD schema for Hackathon event
- Add react-helmet-async for managing meta tags

* chore: remove react-helmet-async

* chore: update landing page

* chore: update UI for signup and login

- add back button for better UX

* feat: add image loading state and skeleton UI for team dashboard

* fix: landing navbar not sticky to top, fix onboarding UI

* feat(hackathon): update UI

- Update dashboard, onboarding user, edit profile, and team layout
  to make it more consistent

* fix: optimize placeholder banner image & minor fix dark mode

* feat(hackathon): update landing page dark mode color scheme

* feat(hackathon): update auth page dark mode color scheme

* feat(hackathon): dashboard UI improvement and dark mode adjustment

* feat(hackathon): browse team page

- update dark mode color scheme
- add some border style to give outline and depth
- change emoji to icon

* feat(hackathon): update team page

- update dark mode color scheme for team page: view, team edit,
  and submit project page
- fix bug in chat where messages are displayed double
- make the form field size consistent

* feat(hackathon): update dark mode onboarding and edit profile

---------

Co-authored-by: Maulana Sodiqin <sodiqincahyana1@gmail.com>
Co-authored-by: Muhammad Zakir Ramadhan <61570975+zakirkun@users.noreply.github.com>

libs/ui/src/molecules/input-field/input-field.tsx

@@ -56,7 +56,7 @@ export const InputField: FC<TInputFieldProps> = ({
       <label
         htmlFor={htmlFor}
         className={cn(
-          'items-start justify-item-start text-start !text-neutral-800',
+          'items-start justify-item-start text-start text-neutral-800! dark:text-neutral-300!',
           sizeClasses[size].label
         )}
       >