Updates Angular compiler to preserve whitespace

Angular now defaults to removing all whitespace (including newlines) in templates, but CoreUI currently relies on newlines to be represented as whitespace between buttons and headings.

Author: ctaleck

src/main.ts

@@ -8,5 +8,7 @@ if (environment.production) {
   enableProdMode();
 }
 
-platformBrowserDynamic().bootstrapModule(AppModule)
+platformBrowserDynamic().bootstrapModule(AppModule, {
+    preserveWhitespaces: true
+})
   .catch(err => console.log(err));