Add prettier config to language server

actions-languageserver/.prettierignore

@@ -0,0 +1,5 @@
+node_modules
+dist
+*.md
+*.js
+*.json

actions-languageserver/.prettierrc.json

@@ -0,0 +1,9 @@
+{
+  "tabWidth": 2,
+  "useTabs": false,
+  "printWidth": 120,
+  "singleQuote": false,
+  "bracketSpacing": false,
+  "trailingComma": "none",
+  "arrowParens": "avoid"
+}

actions-languageserver/package.json

@@ -33,7 +33,9 @@
     "prepublishOnly": "npm run build && npm run test",
     "test": "NODE_OPTIONS=\"--experimental-vm-modules\" jest",
     "test-watch": "NODE_OPTIONS=\"--experimental-vm-modules\" jest --watch",
-    "watch": "tsc --build tsconfig.build.json --watch"
+    "watch": "tsc --build tsconfig.build.json --watch",
+    "prettier": "prettier .",
+    "prettier-fix": "prettier --write ."
   },
   "dependencies": {
     "@github/actions-languageservice": "^0.1.18",
@@ -55,4 +57,4 @@
     "ts-jest": "^29.0.3",
     "typescript": "^4.8.4"
   }
-}
+}