refactor(api): notification state changes use PATCH with JSON body

crates/api-types/src/requests.rs

@@ -83,6 +83,6 @@ pub struct SearchQuery {
 
 #[derive(serde::Deserialize, utoipa::ToSchema)]
 #[serde(rename_all = "camelCase")]
-pub struct FollowRemoteRequest {
-    pub handle: String,
+pub struct NotificationUpdateRequest {
+    pub read: bool,
 }