Cursors in the heading are too small in headings

[JuliaKirschenheuter]

[juliusknorr]

Adding a screeshot from the original issue as it was also unclear what this was about back then:

[juliusknorr]

Reassigning as @JuliaKirschenheuter had some trouble figuring out a good fix, @silverkszlo maybe you could give it an attempt?