Add handlers for suggestions

[Kvaz1r]

For #119

Suggestion list has controlled by editor events(Confirm after Enter and Cancel after escape) so it also needs handlers for list itself. I use driver.CallSync/1 since without it periodically get

panic: AssertUIGoroutine called on a go-routine that was not the UI go-routine

but I don't sure is it correct.

Type

• [x] Bug Fix
• [ ] New Feature
• [ ] Quality of Life Improvement

Tests

I have tested locally against:

• [x] Windows
• [ ] linux
• [ ] OS X
• [ ] BSD

I have included automated tests:

• [ ] Unit tests
• [ ] Integration tests
• [ ] End to end tests

[nelsam]

I'm working on a rewrite of a bunch of the code in vidar to help us rely on gxui a little less and make the core logic a bit more task-specific. I'm merging this as-is so that we don't have a messy rebase later. However, I left some comments that I'll want to address at a later date.