[dev-overlay] always display bundler name on version info (#77739)
### Why?
Previously, we indicated the bundler name only for Turbopack. To better
indicate the user which bundler the app is running (especially when
sharing errors via screenshot), always display bundler name on version
info.
| Webpack | Rspack |
|--------|--------|
| 
| 
|
Closes NDX-986
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Co-authored-by: Jiachi Liu <inbox@huozhi.im>
next.js
fc5bea4c - [dev-overlay] always display bundler name on version info (#77739)
