Release Notes:
- N/A
Just make a simple change to avoid crash.
```
thread 'main' panicked at library\std\src\time.rs:436:33:
overflow when subtracting duration from instant
stack backtrace:
0: std::panicking::begin_panic_handler
at /rustc/17067e9ac6d7ecb70e50f92c1944e545188d2359/library\std\src\panicking.rs:697
1: core::panicking::panic_fmt
at /rustc/17067e9ac6d7ecb70e50f92c1944e545188d2359/library\core\src\panicking.rs:75
2: core::panicking::panic_display
at /rustc/17067e9ac6d7ecb70e50f92c1944e545188d2359/library\core\src\panicking.rs:261
3: core::option::expect_failed
at /rustc/17067e9ac6d7ecb70e50f92c1944e545188d2359/library\core\src\option.rs:2024
4: core::option::Option::expect
at /rustc/17067e9ac6d7ecb70e50f92c1944e545188d2359/library\core\src\option.rs:933
5: std::time::impl$3::sub
at /rustc/17067e9ac6d7ecb70e50f92c1944e545188d2359/library\std\src\time.rs:436
6: data_table::Quote::random
at .\crates\gpui\examples\data_table.rs:54
```