Everything seems good and is running smoothly in terms of switching between tabs.
There is a usability concern is that when an import is added it jumps to the top of the page to show the import and i loose track where i was in the page. Minor but think it could be handled better with maybe a notification displayed instead and then you can continue coding instead of scrolling back and finding where you were and clicking to start typing again.
Also the page switches when clicking save all, i believe it should stay on the page you are on:
– open 3 (or any number) files
– change file 1, switch to file 2 and change, switch to file 3 and change
– click save all
– the focus should stay on page 3 (or the page i am on) and not jump back to page 1
Other than this, it’s super smooth and nice to use, cheers