Rename lint script and add a "fix" one too

Author: XhmikosR

.github/workflows/lint.yml

@@ -24,4 +24,4 @@ jobs:
         run: npm ci
 
       - name: Lint
-        run: npm run xo
+        run: npm run lint

package.json

@@ -17,8 +17,9 @@
   },
   "scripts": {
     "mocha": "mocha",
-    "xo": "xo",
-    "test": "npm run xo && npm run mocha",
+    "lint": "xo",
+    "fix": "xo --fix",
+    "test": "npm run lint && npm run mocha",
     "test:grunt": "grunt ci --force",
     "test:ci": "npm run mocha && npm run test:grunt",
     "test:coverage": "c8 npm run test:ci"