Extract language switching functionality from UserHeader into a new
LanguageSelector component. In mobile view, the selector appears in
the top bar next to the hamburger menu. In desktop view, it appears
in the navigation bar to the left of the UserHeader.
- Create LanguageSelector component with local element bindings
- Update Header component with language_selector_mobile and
language_selector_desktop slots
- Remove language selector code from UserHeader
- Update recipe and main layouts to use new component
- Hide desktop language selector inside mobile hamburger menu
Change English category names to match exact database values:
- 'Main Course' -> 'Main course'
- 'Pasta' -> 'Noodle'
- 'Side Dish' -> 'Side dish'
This fixes empty category sections on the main recipes page.
Use SvelteKit param matcher to constrain [recipeLang] to only match
'recipes' or 'rezepte', preventing it from catching /login, /logout,
and other non-recipe routes.
