/status followup (#4304)

- Render `send a message to load usage data` in the beginning of the
session
- Render `data not available yet` if received no rate limits 
- nit case
- Deleted stall snapshots that were moved to
`codex-rs/tui/src/status/snapshots`

codex-rs/tui/src/status/helpers.rs

@@ -162,7 +162,7 @@ pub(crate) fn format_reset_timestamp(dt: DateTime<Local>, captured_at: DateTime<
     if dt.date_naive() == captured_at.date_naive() {
         time
     } else {
-        format!("{} ({time})", dt.format("%-d %b"))
+        format!("{time} on {}", dt.format("%-d %b"))
     }
 }