## Problem
In Kanban view, clicking the `Empty` value for the Member property can
cause the member popover layout to overflow/break due to a fixed
container width.
### Before ScreenShot
<img width="410" height="119" alt="image"
src="https://github.com/user-attachments/assets/e0d28a37-2ea4-4a65-afca-e4ef10af37dd"
/>
## Repro
1. Open a Database in Kanban view
2. Ensure the Member property has some cards with `Empty`
3. Click the `Empty` member value
4. Observe the popover layout overflow/broken UI
## Solution
Make the popover container responsive by using `width: 100%` with
`maxWidth: 415px` to preserve the original intended size while
preventing overflow in narrow containers.
### After ScreenShot
<img width="410" height="146" alt="image (1)"
src="https://github.com/user-attachments/assets/d97e6b8b-eabc-499a-9f04-0422505c67bf"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Style**
* Improved member selector popover styling: unified padding, made width
responsive with a max width limit, and added box-sizing for more
consistent layout and spacing across screen sizes.
<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
**Problem**
Slash menu can be prematurely aborted when the query is still in
`no_result`
due to async query updates after deletion.
**Solution**
Keep the slash menu alive on text input while in `no_result`,
preventing aborts based on a stale query state.
**Repro**
1. Type `/eeee`
2. Delete to `/`
3. Type `h`
4. Slash menu should recover and show results
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Bug Fixes**
* Enhanced slash-menu keyboard interaction: users can now continue
typing to refine queries when no results are displayed, instead of the
menu closing unexpectedly. Keyboard navigation and other controls remain
responsive.
<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Co-authored-by: DarkSky <25152247+darkskygit@users.noreply.github.com>
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