MM-52536 Webpack unification part 2 (#23557)

* Remove unused bundle-loader

* Remove broken webpack-live-reload-plugin

* Remove unused terser-webpack-plugin

* Remove unused dotenv-webpack

* Update and share type definition for Webpack global values

* Share eslint-import-resolver-webpack

* Remove unused pmmmwh/react-refresh-webpack-plugin

* Remove webpack-cli/serve since it's already part of webpack-cli

* Remove unused Webpack packages from Components

* Share and update style-loader

* Remove unused image-webpack-loader from Boards

webapp/channels/package.json

@@ -135,20 +135,16 @@
     "@types/shallow-equals": "1.0.0",
     "@types/styled-components": "5.1.24",
     "@types/tinycolor2": "1.4.3",
-    "@types/webpack-env": "1.18.0",
     "@typescript-eslint/eslint-plugin": "5.57.1",
     "@typescript-eslint/parser": "5.57.1",
     "babel-plugin-lodash": "3.3.4",
-    "bundle-loader": "0.2.0",
     "copy-webpack-plugin": "11.0.0",
-    "dotenv-webpack": "8.0.1",
     "emoji-datasource": "6.1.1",
     "emoji-datasource-apple": "6.1.1",
     "emoji-datasource-google": "6.1.1",
     "enzyme": "3.11.0",
     "enzyme-adapter-react-17-updated": "1.0.2",
     "enzyme-to-json": "3.6.2",
-    "eslint-import-resolver-webpack": "0.13.2",
     "eslint-plugin-header": "3.1.1",
     "eslint-plugin-import": "2.27.5",
     "eslint-plugin-mattermost": "github:mattermost/eslint-plugin-mattermost#5b0c972eacf19286e4c66221b39113bf8728a99e",
@@ -172,7 +168,6 @@
     "react-router-enzyme-context": "1.2.0",
     "redux-mock-store": "1.5.4",
     "redux-persist-node-storage": "2.0.0",
-    "style-loader": "3.0.0",
     "stylelint": "13.13.1",
     "stylelint-config-idiomatic-order": "8.1.0",
     "stylelint-config-recommended": "5.0.0",
@@ -180,9 +175,7 @@
     "stylelint-config-standard": "22.0.0",
     "stylelint-order": "4.1.0",
     "stylelint-scss": "3.19.0",
-    "terser-webpack-plugin": "5.3.6",
     "webpack-bundle-analyzer": "4.7.0",
-    "webpack-livereload-plugin": "3.0.2",
     "webpack-pwa-manifest": "4.3.0",
     "yargs": "16.2.0",
     "yup": "0.32.11"