Update package versions

Vue2 to the latest version manually and the rest with `yarn upgrade`

package.json

@@ -34,7 +34,7 @@
     "punycode.js": "^2.1.0",
     "ruffle-mirror": "^2021.4.10",
     "v-click-outside": "^2.1.1",
-    "vue": "^2.6.11",
+    "vue": "^2.7.14",
     "vue-i18n": "^7.3.2",
     "vue-router": "^3.0.1",
     "vue-template-compiler": "^2.6.11",
@@ -100,7 +100,7 @@
     "postcss-loader": "^3.0.0",
     "raw-loader": "^0.5.1",
     "sass": "^1.17.3",
-    "sass-loader": "git://github.com/webpack-contrib/sass-loader",
+    "sass-loader": "^10",
     "selenium-server": "2.53.1",
     "semver": "^5.3.0",
     "serviceworker-webpack-plugin": "^1.0.0",