Feat: Create Merge Request (#149)

- Adds the ability to create MRs to the plugin
- Adds the ability to jump to specific discussions/notes in the browser
- Fixes stale icons
- Adds debug keybinding for discussion tree for developers

cmd/resolve_discussion.go

@@ -57,7 +57,7 @@ func (a *api) discussionsResolveHandler(w http.ResponseWriter, r *http.Request)
 	}
 
 	if res.StatusCode >= 300 {
-		handleError(w, GenericError{endpoint: "/discussions/resolve"}, fmt.Sprintf("Could not %s discussion", friendlyName), res.StatusCode)
+		handleError(w, GenericError{endpoint: "/mr/discussions/resolve"}, fmt.Sprintf("Could not %s discussion", friendlyName), res.StatusCode)
 		return
 	}