build: mark critters dependencies as external

Currently we are bunding critters and it's deps into our bundles, but we only need to bundle critters.

We need to bundle critters because in v12 we still use ES5 UMDs and critters is in ES2015 and therefore we cannot extend it's class.

Author: alan-agius4

tools/defaults.bzl

@@ -89,6 +89,14 @@ GLOBALS = {
     "@hapi/hapi": "hapi.hapi",
     "rxjs": "rxjs",
     "rxjs/operators": "rxjs.operators",
+    # The below are deps of critters which we do bundle because it's shipped in ES2015
+    # and we cannot extend otherwise due to UMDs are in ES5
+    "css-select": "cssSselect",
+    "chalk": "chalk",
+    "parse5": "parse5",
+    "parse5-htmlparser2-tree-adapter": "parse5",
+    "postcss": "postcss",
+    "pretty-bytes": "prettyBytes",
 }
 
 def ng_module(name, tsconfig = None, testonly = False, deps = [], bundle_dts = True, **kwargs):