Use json view for jres and refresh file explorer on new generated fil…

…es (#82)

* list .blocks and .jres as aliases for html/json

* refresh file explorer after writing new .g.ts/.g.jres

package.json

@@ -280,6 +280,21 @@
         }
       ]
     },
+    "languages": [
+      {
+        "id": "json",
+        "extensions": [
+          ".jres",
+          ".g.jres"
+        ]
+      },
+      {
+        "id": "html",
+        "extensions": [
+          ".blocks"
+        ]
+      }
+    ],
     "configuration": {
       "title": "MakeCode Arcade",
       "properties": {

src/web/assetEditor.ts

@@ -287,6 +287,10 @@ async function saveFilesAsync(files: {[index: string]: string}) {
 
     await writeFileAsync("./pxt.json", JSON.stringify(parsed, null, 4), "utf8");
     await syncJResAsync();
+
+    if (didChangeConfig) {
+        await vscode.commands.executeCommand("workbench.files.action.refreshFilesExplorer");
+    }
 }
 
 /**