Resetting package fields for development

package.json

@@ -27,7 +27,7 @@
     "matrix-gen-i18n": "scripts/gen-i18n.js",
     "matrix-prune-i18n": "scripts/prune-i18n.js"
   },
-  "main": "./lib/index.js",
+  "main": "./src/index.js",
   "matrix_src_main": "./src/index.js",
   "matrix_lib_main": "./lib/index.js",
   "matrix_lib_typings": "./lib/index.d.ts",
@@ -188,6 +188,5 @@
     "transformIgnorePatterns": [
       "/node_modules/(?!matrix-js-sdk).+$"
     ]
-  },
-  "typings": "./lib/index.d.ts"
+  }
 }