Currently this differs for the same view-change-keys in different layouts.
When the text is "abc", the size of the key's text changes
when toggling between "123" and "abc"; with the text "ABC",
the size remains about the same.
Part-of: <https://gitlab.gnome.org/World/Phosh/squeekboard/-/merge_requests/611>
The altline-outline is primarily meant to be used for keys
that change the view, which is what these keys do.
Also changing it on the actions-view would make the layout not align
well anymore, as it is currently not possible to have 2 different
sizes with the altline-styling.
Part-of: <https://gitlab.gnome.org/World/Phosh/squeekboard/-/merge_requests/601>
