Upgrade packages and fix package security vulnerability (#2903)

Updates and pins package version numbers in `package.json` to reflect the actual
versions in `yarn.lock`. Pins `react-iframe` to `1.7.16` and `jest` to `23.6.0`
- in both cases, there are later versions but they include breaking changes.
Modifies `webpack.config.js` to work with the updated `css-loader` library.
Fixes #2908.

web/app/package.json

@@ -7,40 +7,40 @@
     "@material-ui/core": "3.6.1",
     "@material-ui/icons": "3.0.1",
     "classnames": "2.2.6",
-    "d3-drag": "^1.2.3",
-    "d3-force": "^2.0.0",
-    "d3-format": "^1.3.2",
-    "d3-selection": "^1.3.2",
-    "date-fns": "^1.30.1",
+    "d3-drag": "1.2.3",
+    "d3-force": "2.0.1",
+    "d3-format": "1.3.2",
+    "d3-selection": "1.4.0",
+    "date-fns": "1.30.1",
     "lodash": "4.17.11",
     "path": "0.12.7",
     "prop-types": "15.6.1",
     "react": "16.5.0",
     "react-dom": "16.5.0",
-    "react-iframe": "^1.5.0",
-    "react-router": "4.2.0",
-    "react-router-dom": "4.2.2",
-    "react-router-prop-types": "^1.0.4",
+    "react-iframe": "1.7.16",
+    "react-router": "4.3.1",
+    "react-router-dom": "4.3.1",
+    "react-router-prop-types": "1.0.4",
     "react-url-query": "1.4.0",
     "whatwg-fetch": "2.0.3"
   },
   "devDependencies": {
-    "@wdio/cli": "^5.7.10",
-    "@wdio/local-runner": "^5.7.9",
-    "@wdio/mocha-framework": "^5.7.8",
-    "@wdio/sync": "^5.7.9",
+    "@wdio/cli": "5.9.4",
+    "@wdio/local-runner": "5.9.4",
+    "@wdio/mocha-framework": "5.9.4",
+    "@wdio/sync": "5.9.4",
     "babel-core": "6.26.0",
     "babel-eslint": "8.0.3",
     "babel-jest": "23.6.0",
     "babel-loader": "7.1.4",
     "babel-plugin-import": "1.7.0",
-    "babel-plugin-transform-react-remove-prop-types": "^0.4.21",
+    "babel-plugin-transform-react-remove-prop-types": "0.4.24",
     "babel-preset-env": "1.7.0",
     "babel-preset-react-app": "3.1.1",
-    "babel-runtime": "^6.26.0",
-    "chromedriver": "^2.46.0",
+    "babel-runtime": "6.26.0",
+    "chromedriver": "2.46.0",
     "clean-webpack-plugin": "1.0.0",
-    "css-loader": "0.28.7",
+    "css-loader": "2.1.1",
     "enzyme": "3.7.0",
     "enzyme-adapter-react-16": "1.6.0",
     "eslint": "4.12.1",
@@ -56,16 +56,16 @@
     "jest": "23.6.0",
     "jest-dot-reporter": "1.0.7",
     "jest-enzyme": "7.0.0",
-    "lodash-webpack-plugin": "^0.11.5",
+    "lodash-webpack-plugin": "0.11.5",
     "react-test-renderer": "16.5.2",
     "sinon": "7.0.0",
     "sinon-stub-promise": "4.0.0",
     "style-loader": "0.21.0",
     "url-loader": "1.0.1",
-    "wdio-chromedriver-service": "^5.0.1",
-    "webdriverio": "^5.7.9",
+    "wdio-chromedriver-service": "5.0.1",
+    "webdriverio": "5.9.4",
     "webpack": "4.20.2",
-    "webpack-bundle-analyzer": "^3.3.2",
+    "webpack-bundle-analyzer": "3.3.2",
     "webpack-cli": "3.0.7",
     "webpack-dev-server": "3.3.1"
   },

web/app/webpack.config.js

@@ -48,7 +48,7 @@ module.exports = {
         test: /\.css$/,
         use: [
           'style-loader',
-          { loader: 'css-loader', options: { importLoaders: 1, minimize: true } },
+          { loader: 'css-loader', options: { importLoaders: 1 } },
         ]
       },
       {