Fix prettier config in VSCode Extension (#3971)

Summary:
Some of the config brought over in #3953 borked some stuff.

I "fixed" the config and re ran prettier against the files.

Pull Request resolved: #3971

Test Plan:
Imported from GitHub, without a `Test Plan:` line.

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|**Modified Pages**|

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|**Modified Pages**|

Reviewed By: alunyov

Differential Revision: D37144915

Pulled By: captbaritone

fbshipit-source-id: 05c227d712e89c0ba5f14dabc08fc7a1cf047c38

vscode-extension/.eslintrc

@@ -10,11 +10,13 @@
     "operator-linebreak": "off",
     "@typescript-eslint/indent": "off",
     "@typescript-eslint/object-curly-spacing": "off",
+    "object-curly-newline": "off",
+    "arrow-parens": "off",
 
     // Opinionated
     "import/prefer-default-export": "off",
     "no-await-in-loop": "off",
     "no-use-before-define": "off",
-    "@typescript-eslint/no-use-before-define": ["error", { "functions": false }]
+    "@typescript-eslint/no-use-before-define": ["error", {"functions": false}]
   }
 }

vscode-extension/grammars/graphql.js.json

@@ -28,7 +28,7 @@
           "name": "punctuation.definition.string.template.end.js"
         }
       },
-      "patterns": [{ "include": "source.graphql" }]
+      "patterns": [{"include": "source.graphql"}]
     },
     {
       "name": "taggedTemplates",
@@ -48,7 +48,7 @@
           "name": "punctuation.definition.string.template.end.js"
         }
       },
-      "patterns": [{ "include": "source.graphql" }]
+      "patterns": [{"include": "source.graphql"}]
     }
   ],
   "scopeName": "inline.graphql"