Defeat VSCode Tab Bar

A while ago, I found my VSCode tab bar (or tool bar) UI was quite unstable. The reason was that extensions may add icons called “action button” on the right side of the tab bar according to the type of the file, so when switching back and forth between different kinds of files, these buttons will either show or hide, making the available spaces for tabs changing constantly. This may not be noticable when you just open a few tabs, but if you have tabs that are enough to take up the spaces of the tab bar, the whole tab bar will be a clown fiesta with the appearace and disappearance of the action buttons....