Update vscode settings to use prettier for formatting json files,

and update some deprecated settings

.vscode/settings.json

@@ -1,10 +1,9 @@
 {
     "editor.codeActionsOnSave": {
-        "source.organizeImports": false
+        "source.organizeImports": "never"
     },
     "typescript.enablePromptUseWorkspaceTsdk": true,
     "npm.packageManager": "yarn",
-    "eslint.packageManager": "yarn",
     "editor.defaultFormatter": "esbenp.prettier-vscode",
     "eslint.format.enable": true,
     "search.exclude": {
@@ -14,5 +13,8 @@
         "yarn.lock": true,
         "**/.yarn": true
     },
-    "omnisharp.useModernNet": false
+    "omnisharp.useModernNet": false,
+    "[json]": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode"
+    }
 }