Add an way to disable prediction popover

[pedrobartolini]

Suggestion: Add Option to Toggle Prediction Display Mode

When LSP completions appear on screen, a small prediction preview popup currently shows up.
Speaking personally, I find this popup somewhat distracting and unintuitive — it often switches between the classic inline greyed text and the floating preview box, which can make the experience feel cluttered while typing.

---

Problem

The rapid alternation between inline predictions and the popup can interrupt focus and reduce readability, especially when the prediction updates frequently.

Example of the current popup:

---

Suggestion

Add a configuration option to toggle both prediction display modes:

• Inline greyed text
• Popover preview

This would allow users to choose their preferred completion style — either a minimalist inline approach (similar to VScode GitHub Copilot) or the richer popup preview for those who prefer it.

Example config concept:

[DavidBK]

Yes! I was a big fan of the old UI for edit prediction, where the LSP pop-up and edit prediction were two separate elements.
It would also be helpful if there were an option to remove the key hint (Option-Tab or a custom keybinding, sometime the ui is mixing them...) for edit prediction.
I find these hints very distracting and not in line with the overall clean and focused design of Zed.