Chat: Display Enhanced Context settings on first chat

[abeatrix]

CLOSE #2839

• As discussed with @toolmantim in this figma comment thread, we will open Enhanced Settings on first chat by default.
• Add dropdown button for Enhanced Context Settings
• Existing button for Enhanced Context Settings is now for toggling enhanced context enablement.

Test plan

• Updated e2e tests

To test this manually:

1. Open a new Cody Chat
2. The Enhanced Context settings should be opened by default
3. Send a new message
4. the Enhanced Context settings windows is closed when you move focus to the chat input box

After

First chat for Dot Com users:

First chat for enterprise users:

[abeatrix]

@toolmantim before I fix the e2e tests to reflect the new behavior, can you take a look and let me know if this aligns with what you had in mind?

[toolmantim]

@abeatrix Nice! Yeah checking it out now. Quick one: I spotted CodyVSCodeExtension:useEnhancedContextToggler:clicked event isn't triggered when you click it via the new button. (edit: we may want to include a metadata property of the source, so we can tell where they click it from — popover or input button)

[abeatrix]

@abeatrix Nice! Yeah checking it out now. Quick one: I spotted CodyVSCodeExtension:useEnhancedContextToggler:clicked event isn't triggered when you click it via the new button. (edit: we may want to include a metadata property of the source, so we can tell where they click it from — popover or input button)

added a new event useEnhancedContextInputToggler event for the new icon click

[toolmantim]

Just pushed a bunch of style fixes, and the only thing left I think is some of the keyboard accessibility fixes:

• Tabbing to enhanced context indicator button and hitting space/enter shouldn't refocus the input, that should only happen when context indicator button is clicked. Pressing escape while the enhanced context indicator button is focused should focus the message input.
• If you shift-tab from the popover checkbox back into the message input, the popover should be dismissed

[toolmantim]

Approving to unblock, given how close this is

[abeatrix]

Approving to unblock, given how close this is

Thank you so much for your help with the css ❤️ I'll work on the keyboard shortcuts tomorrow, and then update all the outdated e2e tests and add new ones to cover these new behavior. Thanks again!

[abeatrix]

If you shift-tab from the popover checkbox back into the message input, the popover should be dismissed
@toolmantim I couldn't get this to work, but I will work on it in a follow-up as this is an existing behavior. For now, users can hit Escape when the input box is focused though to dismiss the popover.

[toolmantim]

I only spotted this logic. This is more like isEmptyChat which isn't what we want here. We want it to appear on the first chat that's created for first time users, not every time a chat is created.