Default layout is too wide

[malbiruk]

At reasonable window width and height with small amount of content there are scollbars -- the content doesn't "auto-fit".

Expected behavior:

Default (minimum) content size is narrower and shorter, scrollbars appear only if content doesn't fit in window.

[wwmaxik]

Fixed in commit 81259c0.

Removed all set_min_content_height() calls from scrolled windows. Content now automatically fits the window size, and scrollbars only appear when content doesn't fit. Also reduced default window size from 1000x700 to 900x650 for better fit on smaller screens.