## Context
For users with many records, only the first n*60 records were loaded on
board views (n being the number of visible columns). This was because of
the following behavior:
- watch for end of column visibility changes. If an end of column is
visible, try to fetch more. However, watching for visbility changes is
not reliable enough.
## What we want
If an end of column is visible, try to fetch more. If no more records is
availble in pagination, do not fetch more
In this PR, I'm fixing two things on the ViewPicker in Create mode:
- if the Dropdown has no max height, it should not be scrollable (which
is causing issue with inner dropdowns being cut by overflow: hidden
- if the user has changed the icon, the type or the name of the view,
consider the create form as isDirty and prevent its value to be
overriden by re-renders (cache updates for example)
