make downloaded JSON readable

client/src/components/world_selection_menu.tsx

@@ -81,7 +81,7 @@ export function WorldSelectionMenu() {
   const downloadProgress = (e) => {
     e.preventDefault()
     downloadFile({
-      data: JSON.stringify(gameProgress),
+      data: JSON.stringify(gameProgress, null, 2),
       fileName: `lean4game-${gameId}-${new Date().toLocaleDateString()}.json`,
       fileType: 'text/json',
     })

client/src/state/local_storage.ts

@@ -25,7 +25,7 @@ export function loadState() {
 /** Save to browser storage */
 export async function saveState(state: any) {
   try {
-    const serializedState = JSON.stringify(state);
+    const serializedState = JSON.stringify(state)
     localStorage.setItem(KEY, serializedState);
   } catch (e) {
     // Ignore