Add terms of service (#33055)

app/javascript/mastodon/api/instance.ts

@@ -0,0 +1,11 @@
+import { apiRequestGet } from 'mastodon/api';
+import type {
+  ApiTermsOfServiceJSON,
+  ApiPrivacyPolicyJSON,
+} from 'mastodon/api_types/instance';
+
+export const apiGetTermsOfService = () =>
+  apiRequestGet<ApiTermsOfServiceJSON>('v1/instance/terms_of_service');
+
+export const apiGetPrivacyPolicy = () =>
+  apiRequestGet<ApiPrivacyPolicyJSON>('v1/instance/privacy_policy');