feat(WEB-38, WEB-9, WEB-19): add static page for sponsoring, add Header and add Footer

types/components/current/header.ts

@@ -0,0 +1,3 @@
+export type HeaderProps = {
+  pathname: string
+}

types/components/current/languageSwitcher.ts

@@ -0,0 +1,9 @@
+export type LanguageSwitcherLink = {
+  href: string
+  title: string
+}
+
+export type LanguageSwitcherProps = {
+  currentLanguage: string
+  links: LanguageSwitcherLink[]
+}