fix: update old docs links (#2845)

- Markdown guide link to support article
- API version deprecated error to new docs
- Modpack permissions error to support article
- Labrinth README links to new docs
- App WebView2 link to support article

apps/labrinth/src/queue/moderation.rs

@@ -145,7 +145,7 @@ impl ModerationMessage {
             ModerationMessage::NoPrimaryFile => "Please attach a file to this version. All files on Modrinth must have files associated with their versions.\n".to_string(),
             ModerationMessage::PackFilesNotAllowed { files, .. } => {
                 let mut str = "".to_string();
-                str.push_str("This pack redistributes copyrighted material. Please refer to [Modrinth's guide on obtaining modpack permissions](https://docs.modrinth.com/modpacks/permissions) for more information.\n\n");
+                str.push_str("This pack redistributes copyrighted material. Please refer to [Modrinth's guide on obtaining modpack permissions](https://support.modrinth.com/en/articles/8797527-obtaining-modpack-permissions) for more information.\n\n");
 
                 let mut attribute_mods = Vec::new();
                 let mut no_mods = Vec::new();

apps/labrinth/src/routes/mod.rs

@@ -69,7 +69,7 @@ pub fn root_config(cfg: &mut web::ServiceConfig) {
                 Ok(req.into_response(
                     HttpResponse::Gone()
                         .content_type("application/json")
-                        .body(r#"{"error":"api_deprecated","description":"You are using an application that uses an outdated version of Modrinth's API. Please either update it or switch to another application. For developers: https://docs.modrinth.com/docs/migrations/v1-to-v2/"}"#)
+                        .body(r#"{"error":"api_deprecated","description":"You are using an application that uses an outdated version of Modrinth's API. Please either update it or switch to another application. For developers: https://docs.modrinth.com/api/#versioning"}"#)
                 ))
             }.boxed_local()
         })