So far, file editors have reported isDirty() === false when auto save was enabled e.g. to avoid showing dirty indicators. With the advent of custom editors, this needs to be cleaned up. The new method isSaving() serves as a hint that an editor can be dirty but in the process of being saved. As such, we can decide to hide the dirty indicator in that case. But in other cases we may want to know if the editor is dirty or not, even if auto saved.

`.color` is no longer nullable. Use an empty string instead of null

fixes #82907

refs #78168

* adopt font window icon controls
fixes #82193

* fix max/restore button

Use an empty string instead of null for reseting styles

* working on the left side

* flow direction working

* flow direction

* use menubar visibility to set setting

* hide titlebar on the web

* fix hover feedback

Fixes #80079

Updates our build to use TS 3.6. Fixes a few changes to dom apis and adds a monkey patch for the node typings break in 3.6

We seem to use the readonly property way of exposing these values more widely. Standardizing this a bit across the codebase