merge: Replace JSDOM with cheerio (!973)

View MR for information: https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/973

Approved-by: dakkar <dakkar@thenautilus.net>
Approved-by: Marie <github@yuugi.dev>

packages/backend/src/server/api/mastodon/endpoints/search.ts

@@ -112,7 +112,7 @@ export class ApiSearchMastodon {
 				{
 					method: 'POST',
 					headers: {
-						...request.headers as HeadersInit,
+						...request.headers,
 						'Accept': 'application/json',
 						'Content-Type': 'application/json',
 					},
@@ -135,7 +135,7 @@ export class ApiSearchMastodon {
 				{
 					method: 'POST',
 					headers: {
-						...request.headers as HeadersInit,
+						...request.headers,
 						'Accept': 'application/json',
 						'Content-Type': 'application/json',
 					},