Bump mini-css-extract-plugin from 0.4.5 to 0.5.0 in /js

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 0.4.5 to 0.5.0.
- [Release notes](https://github.com/webpack-contrib/mini-css-extract-plugin/releases)
- [Changelog](https://github.com/webpack-contrib/mini-css-extract-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/mini-css-extract-plugin/compare/v0.4.5...v0.5.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

js/package-lock.json

@@ -4529,9 +4529,9 @@
       "dev": true
     },
     "mini-css-extract-plugin": {
-      "version": "0.4.5",
-      "resolved": "https://registry.npmjs.org/mini-css-extract-plugin/-/mini-css-extract-plugin-0.4.5.tgz",
-      "integrity": "sha512-dqBanNfktnp2hwL2YguV9Jh91PFX7gu7nRLs4TGsbAfAG6WOtlynFRYzwDwmmeSb5uIwHo9nx1ta0f7vAZVp2w==",
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/mini-css-extract-plugin/-/mini-css-extract-plugin-0.5.0.tgz",
+      "integrity": "sha512-IuaLjruM0vMKhUUT51fQdQzBYTX49dLj8w68ALEAe2A4iYNpIC4eMac67mt3NzycvjOlf07/kYxJDc0RTl1Wqw==",
       "dev": true,
       "requires": {
         "loader-utils": "^1.1.0",

js/package.json

@@ -28,7 +28,7 @@
     "babel-loader": "^8.0.4",
     "css-loader": "^2.0.1",
     "karma": "^3.1.3",
-    "mini-css-extract-plugin": "^0.4.5",
+    "mini-css-extract-plugin": "^0.5.0",
     "uglifyjs-webpack-plugin": "^2.0.1",
     "webpack": "^4.26.1",
     "webpack-cli": "^3.1.2",