feat: introduce graphql mode for codemirror

package-lock.json

@@ -5,6 +5,7 @@
   "requires": true,
   "packages": {
     "": {
+      "name": "hoppscotch",
       "version": "2.0.0",
       "dependencies": {
         "@apollo/client": "^3.4.10",
@@ -25,6 +26,7 @@
         "fuse.js": "^6.4.6",
         "graphql": "^15.5.0",
         "graphql-language-service-interface": "^2.8.4",
+        "graphql-language-service-parser": "^1.9.2",
         "json-loader": "^0.5.7",
         "lodash": "^4.17.21",
         "mustache": "^4.2.0",