Replace ts-loader with Babel (#21587)

* Applied prettier to relevant webpack configs

* Replaced ng-annotate with babel-plugin-angularjs-annotate

… and replaced ts-loader with @preset/typescript

* Removed redundant import

… that is problematic with Babel's module resolver

* Updated lockfile

* Traspile debug package to es5 for PhantomJS support

* Update babel to latest version

* Remove @babel/poolyfill and url search params polyfill

* Add ts-loader to grafana-ui dependencies

* Update prod webpack build to use cor-js 3

* Applied prettier to relevant webpack configs

* Replaced ng-annotate with babel-plugin-angularjs-annotate

… and replaced ts-loader with @preset/typescript

* Updated lockfile

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

packages/grafana-toolkit/package.json

@@ -26,8 +26,8 @@
   },
   "main": "src/index.ts",
   "dependencies": {
-    "@babel/core": "7.6.4",
-    "@babel/preset-env": "7.6.3",
+    "@babel/core": "7.8.3",
+    "@babel/preset-env": "7.8.3",
     "@grafana/data": "6.7.0-pre",
     "@grafana/ui": "6.7.0-pre",
     "@types/command-exists": "^1.2.0",

packages/grafana-ui/package.json

@@ -91,6 +91,7 @@
     "rollup-plugin-terser": "4.0.4",
     "rollup-plugin-typescript2": "0.19.3",
     "rollup-plugin-visualizer": "0.9.2",
+    "ts-loader": "6.2.1",
     "typescript": "3.7.2"
   },
   "types": "src/index.ts"