Make all params of the next API required

Author: garronej

src/next-appdir/DsfrHead.tsx

@@ -21,8 +21,7 @@ export type DsfrHeadProps = {
      * Preloading of fonts is only enabled in production.
      */
     preloadFonts?: (keyof typeof fontUrlByFileBasename)[];
-    /** Default: <a /> */
-    Link?: Function;
+    Link: Function;
     /**
      * When set, the value will be used as the nonce attribute of subsequent script tags.
      *
@@ -67,9 +66,7 @@ export function DsfrHead(props: DsfrHeadProps) {
     const defaultColorScheme = getDefaultColorSchemeServerSide();
 
     useMemo(() => {
-        if (Link !== undefined) {
-            setLink({ "Link": Link as any });
-        }
+        setLink({ "Link": Link as any });
     }, [Link]);
 
     return (

src/next-appdir/DsfrProvider.tsx

@@ -11,9 +11,8 @@ import { setLink } from "../link";
 
 export type DsfrProviderProps = {
     children: ReactNode;
-    lang?: string;
-    /** Default: <a /> */
-    Link?: Function;
+    lang: string | undefined;
+    Link: Function;
     defaultColorScheme: DefaultColorScheme;
 };
 
@@ -33,9 +32,7 @@ export function DsfrProvider(props: DsfrProviderProps) {
     }, [lang]);
 
     useMemo(() => {
-        if (Link !== undefined) {
-            setLink({ "Link": Link as any });
-        }
+        setLink({ "Link": Link as any });
     }, [Link]);
 
     if (isBrowser) {

src/next-appdir/getHtmlAttributes.tsx

@@ -10,7 +10,7 @@ const suppressHydrationWarning = true;
 
 export function getHtmlAttributes(params: {
     defaultColorScheme: DefaultColorScheme;
-    lang?: string;
+    lang: string | undefined;
 }): { suppressHydrationWarning: true; lang?: string } & (
     | Record<typeof data_fr_scheme | typeof data_fr_theme, ColorScheme>
     | {}