Update Avalonia version

[edgarfgp]

Updates to the latest Avalonia version to 11.0.5

[grokys]

Any reason that the Avalonia version needs to be updated? In general we should be targeting the lowest version that works, because otherwise we exclude users who are targeting a lower version of Avalonia.

[edgarfgp]

Any reason that the Avalonia version needs to be updated? In general we should be targeting the lowest version that works, because otherwise we exclude users who are targeting a lower version of Avalonia.

I have been working on adding F# Fabulous support for:

• DataGrid -> 11.0.5
• ColorPicker -> 11.0.5
• ItemsRepeater -> 11.0.5
• TreeDataGrid -> 11.0.0

I thought for consistency would be good to align all the packages to the same version