[docs] clean up type alias syntax in interfaces

Follow up to #2307

Author: ignatiusmb

documentation/docs/01-routing.md

@@ -88,9 +88,12 @@ export interface RequestHandler<
 	Locals = Record<string, any>,
 	Input = unknown,
 	Output extends DefaultBody = DefaultBody
-> = (
-	request: ServerRequest<Locals, Input>
-) => void | EndpointOutput<Output> | Promise<void | EndpointOutput<Output>>;
+> {
+	(request: ServerRequest<Locals, Input>):
+		| void
+		| EndpointOutput<Output>
+		| Promise<void | EndpointOutput<Output>>;
+}
 ```
 
  For example, our hypothetical blog page, `/blog/cool-article`, might request data from `/blog/cool-article.json`, which could be represented by a `src/routes/blog/[slug].json.js` endpoint:

documentation/docs/03-loading.md

@@ -12,7 +12,7 @@ export interface LoadInput<
 	PageParams extends Record<string, string> = Record<string, string>,
 	Context extends Record<string, any> = Record<string, any>,
 	Session = any
-> = {
+> {
 	page: {
 		host: string;
 		path: string;
@@ -22,19 +22,19 @@ export interface LoadInput<
 	fetch(info: RequestInfo, init?: RequestInit): Promise<Response>;
 	session: Session;
 	context: Context;
-};
+}
 
 export interface LoadOutput<
 	Props extends Record<string, any> = Record<string, any>,
 	Context extends Record<string, any> = Record<string, any>
-> = {
+> {
 	status?: number;
 	error?: string | Error;
 	redirect?: string;
 	props?: Props;
 	context?: Context;
 	maxage?: number;
-};
+}
 ```
 
 Our example blog page might contain a `load` function like the following: