Fixed an issue where the position would break when selecting a member from the invite list. (#1349)

[fix]: Fixed an issue where the position would break when selecting a
member from the invite list.

### Problem ScreenShot

![image](https://github.com/user-attachments/assets/bdc7b5ac-5494-4c5f-a294-96aa36da9afa)

![image](https://github.com/user-attachments/assets/ed4976ec-1082-4f91-bdee-7836a65b82e4)

Fixes [CLNP-7040](https://sendbird.atlassian.net/browse/CLNP-7040)

### Changelogs
- Fixed an issue where the position would break when selecting a member
from the invite list

### Checklist

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creating the PR. If unsure, ask the members.
This is a reminder of what we look for before merging your code.

- [x] **All tests pass locally with my changes**
- [ ] **I have added tests that prove my fix is effective or that my
feature works**
- [ ] **Public components / utils / props are appropriately exported**
- [ ] I have added necessary documentation (if appropriate)


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[CLNP-7040]:
https://sendbird.atlassian.net/browse/CLNP-7040?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Author: danney-chun

src/ui/UserListItem/index.scss

@@ -4,7 +4,7 @@
   display: block;
   position: relative;
   box-sizing: border-box;
-  width: 432px;
+  width: 100%;
   height: 56px;
   @include mobile() {
     width: 100%;