Workaround since normal builds still work here

Seems that having a super long includes section crashes tsc on windows

Upgrades our build scripts to target ES2017 since they are run on modern versions of node

This allows us to remove shims for es6 features such as `Object.assign`, and also remove a few extra typings packages

Part of #60565

related to #60163

#60565

#60565

Currently broken for duplicated typings

#60565

* Settings: Labeling for "Modified in ..." Fixes #59492

* Eliminate unnecessary empty itemElement object

* Remove label on Booleans

* Test, Cleanup

Update file icons to use file type icon in small views

This code pattern indicates that the type should be nullable

In these cases, the programmer has explicitly indicated that the type should be nullable