ctrl+c in cell blocks navigation

[Marc-Andre-Rivet]

1. Navigate to a cell with either keyboard or mouse
2. Ctrl+c
3. Notice that you can't navigate out of the cell with the keyboard (need to click another cell)

Expected behavior:
Can navigate normally after ctrl+c

Note: This does not affect ctrl+v
Note: Fix should include e2e test for both ctrl+c/v

[Marc-Andre-Rivet]

In PR #90