feat(functions): Add predicate function to determine last window

Adds a function that can be used to check whether the current buffer
is displayed in the "last" window of the active frame.

The intention is to use this predicate to modify the modeline display
to only show miscellaneous information (time, battery percentage etc.)
on the last window instead of duplicating it.

0 files changed, 0 insertions, 0 deletions