run gulp watch on launch

Author: aprilla

.devcontainer/devcontainer.json

@@ -12,7 +12,7 @@
             ]
         }
     },
-    "onCreateCommand": "npm install",
+    "onCreateCommand": "npm install & npm install -g gulp",
     "postAttachCommand": {
         "server": "npm run serve",
         "watcher": "gulp watch"

package.json

@@ -9,7 +9,6 @@
     "test": "nyc --check-coverage --lines 100 --functions 100 --branches 100 mocha app/tests",
     "coverage": "nyc report --reporter=text-lcov | node ./node_modules/coveralls/bin/coveralls.js",
     "lint": "./node_modules/.bin/eslint .",
-    "watch-dev": "gulp start-watcher",
     "serve": "node ./node_modules/http-server/bin/http-server"
   },
   "husky": {
@@ -27,6 +26,7 @@
     "eslint": "^5.16.0",
     "eslint-config-airbnb-base": "^13.1.0",
     "eslint-plugin-import": "^2.17.2",
+    "sass": "^1.26.10",
     "gulp": "^4.0.2",
     "gulp-concat": "^2.6.1",
     "gulp-remove-code": "^3.0.4",
@@ -35,7 +35,6 @@
     "husky": "^8.0.1",
     "mocha": "^8.1.2",
     "nyc": "^14.1.0",
-    "sass": "^1.26.10",
     "sinon": "^7.3.2"
   }
 }