* Update dependency ember-power-select to v4
* Fixed trigger component override collision when building
- move the "override" into our own namespace
- update all `<PowerSelect>` usage to explicitly reference our customised trigger component
* Bumped ember-power-datepicker
- bumps `ember-basic-dropdown` sub-dependency
- resolves "Error: Could not find module `ember-compatibility-helpers` imported from `@glimmer/component/index`"
- https://github.com/cibernox/ember-basic-dropdown/issues/551
* Updated trigger to use class syntax
- it's not possible to use `.extend()` on an imported class
* Updated <GhBasicDropdown>
- match updated ember-basic-dropdown code
* Added `autofocus` modifier
- added `ember-modifier` dependency so that we can create our own render modifiers
* Updated <GhSearchInputTrigger> to a glimmer component
* Updated gh-token-input components
* Fixed tests
- wrap `<PowerSelect>` with `<div>` to maintain test selectors
- fixed `<GhBasicDropdown>` not rendering anything due to not having a local template
Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: Kevin Ansfield <kevin@lookingsideways.co.uk>
