Escape key should close the autocomplete before switching to normal mode

[dephiros]

Currently, when in insert mode and the suggest panel(autocomplete) shows up, hitting escape will close the suggest panel and switch to normal mode.
This change allows the user to only close the suggest panel. To go to normal mode, the user would have to hit escape again.

A situation where this is helpful is when the suggest panel pop up together with github copilot suggestion. We want to stay in insert mode to accept github copilot suggestion

[71]

Thanks for the suggestion and PR!

package.json is automatically generated and should not be modified. Instead, this line should be modified as it defines the keybinding.

Currently, dance.modes.set.normal runs the command hideSuggestWidget (see link above), so it is somewhat expected that the suggest widget might be opened when switching from insert mode to normal mode. I do agree that it would be better to instead close the suggest widget on escape, but this is somewhat of a breaking change.

I suppose the change needed to do that is

- * | Set mode to Normal | `set.normal` | `escape` (kakoune: insert), `escape` (helix: select) | `[".modes.set", { mode: "normal" }], ["hideSuggestWidget"]` |
+ * | Set mode to Normal | `set.normal` | `escape` (kakoune: insert, "!suggestWidgetVisible"), `escape` (helix: select) | `[".modes.set", { mode: "normal" }]` |

(with the table is reformatted).

And because VS Code keybindings interact in fairly complex ways, this should be tested (locally, no need to add a test) to be sure this works as expected. And CHANGELOG.md should mention the change, with a snippet to restore the previous behavior.