Use a human-readable date format for the `now` command's label (#13632)
Before:

After:
<img width="435" alt="Screenshot 2024-06-28 at 18 52 08"
src="https://github.com/zed-industries/zed/assets/2690773/8e9fd285-1991-4088-a93a-5ea3259d364a">
<img width="480" alt="Screenshot 2024-06-28 at 18 52 10"
src="https://github.com/zed-industries/zed/assets/2690773/7853fc90-6a63-4e66-bb83-2ed37d41b1b9">
Release Notes:
- N/A
7d767ff0a3Kirill Bulatov committed on 6/28/2024, 3:57:29 PM· committed by GitHubparent3cabd4b