Update refreshThumbnails signature to accept selection loading flag

src/main.js

@@ -422,7 +422,7 @@ function stopProgress() {
   }
 }
 
-async function refreshThumbnails(selectedPath) {
+async function refreshThumbnails(selectedPath, shouldLoadSelection = true) {
   let maps;
   try {
     maps = await invoke('list_maps');