Use packaged node-worker-loader and node-cache-loader

debian/control

@@ -316,6 +316,7 @@ Depends: ${shlibs:Depends}, ${misc:Depends},
  node-axios (>= 0.17.1~),
  node-brace-expansion (>= 1.1.8~),
  node-bootstrap,
+ node-cache-loader (>= 2.0.1~),
  node-chart.js (>= 2.7.2~),
  node-core-js,
  node-css-loader,
@@ -351,6 +352,7 @@ Depends: ${shlibs:Depends}, ${misc:Depends},
  node-vue-resource (>= 1.5.1~),
  webpack (>= 4~),
  node-webpack-stats-plugin,
+ node-worker-loader (>= 2.0~),
 # using npm for remaining as it is in contrib
 # node-babel-core,
 # node-babel-eslint,

debian/patches/0740-use-packaged-modules.patch

@@ -1,6 +1,6 @@
 --- a/package.json
 +++ b/package.json
-@@ -38,32 +38,13 @@
+@@ -38,32 +38,12 @@
      "apollo-client": "^2.5.1",
      "apollo-upload-client": "^10.0.0",
      "at.js": "^1.5.4",
@@ -9,7 +9,7 @@
      "babel-loader": "^8.0.5",
 -    "bootstrap": "4.3.1",
 -    "brace-expansion": "^1.1.8",
-     "cache-loader": "^2.0.1",
+-    "cache-loader": "^2.0.1",
 -    "chart.js": "2.7.2",
      "classlist-polyfill": "^1.2.0",
      "clipboard": "^1.7.1",
@@ -33,7 +33,7 @@
      "deckar01-task_list": "^2.2.0",
      "diff": "^3.4.0",
      "document-register-element": "1.13.1",
-@@ -74,33 +55,20 @@
+@@ -74,33 +54,20 @@
      "exports-loader": "^0.7.0",
      "file-loader": "^3.0.1",
      "formdata-polyfill": "^3.0.11",
@@ -67,7 +67,7 @@
      "raw-loader": "^1.0.0",
      "sanitize-html": "^1.16.1",
      "select2": "3.5.2-browserify",
-@@ -113,27 +81,18 @@
+@@ -113,28 +80,18 @@
      "stylelint-error-string-formatter": "1.0.2",
      "svg4everybody": "2.1.9",
      "three": "^0.84.0",
@@ -92,9 +92,10 @@
 -    "webpack-bundle-analyzer": "^3.0.3",
 -    "webpack-cli": "^3.2.1",
 -    "webpack-stats-plugin": "^0.2.1",
-     "worker-loader": "^2.0.0",
+-    "worker-loader": "^2.0.0",
      "xterm": "^3.5.0"
    },
+   "devDependencies": {
 --- a/app/assets/stylesheets/application.scss
 +++ b/app/assets/stylesheets/application.scss
 @@ -12,7 +12,7 @@