Open window with full height to void scroll bar

[humdinger]

This is hrev53496.

A people window (new or from existing People file) openes with a fixed height, showing only the top attributes. For the rest you have to scroll down. It should show them all, at least if there's enough vertical screen space:

[humdinger]

height-limited Poeple window

[pulkomandy]

Proposed fix: ​https://review.haiku-os.org/c/haiku/+/2222

[pulkomandy]

Merged in hrev55259.