Now that the last usages of ModalService is removed from the web portions we can finally remove jQuery and Popper.js. This PR also removes bootstrap js imports since it would drag in jQuery as a peer dependency.
Note: Both dependencies still exists in the lockfile as they are peer dependencies of boostrap.
Angular 6 changed the default to not preserve whitespaces. We've continued to opt into this pattern for backwards compatibility but we're experiencing issues with the new control flow syntax and would therefore like to switch and not preserve whitespace any longer.