next.js

4b8bf686 - [dev-overlay] deprecate `devIndicators.buildActivityPosition` and rename to `position` (#76069)

[dev-overlay] deprecate `devIndicators.buildActivityPosition` and rename to `position` (#76069) ### Why? Since the `buildActivity` is deprecated at #76067, `buildActivityPosition` may also be deprecated. However, we are planning to preserve the option to position the dev indicator. Therefore, this PR adds a new option `position` and deprecates and aliases the `buildActivityPosition` to `position`. ### Success Criteria Deprecation: - [x] Does using `buildActivityPosition` show a deprecation warning? - [x] Does `buildActivityPosition` have a deprecation in JSDoc? Alias: > Is it backward compatible with the old overlay? - [x] Does setting `buildActivityPosition` correctly set the build activity indicator position? - [x] Does it warn if `buildActivityPosition` is set instead of `position`? - [x] Does `buildActivityPosition` supersede `position` value to prevent breaking change? - [x] Does setting the `position` correctly set the build activity indicator position? ### Follow Up In the following PRs, we will add the behavior for `position` to adjust the dev indicator's position. After removing the old overlay's sources, we can remove any logic that `buildActivityPosition` was holding for the old overlay and make it fully an alias for backwards compatibility. Closes NDX-837