Migrate to KSP

[papjul]

Quoting docs:

KSP (Kotlin Symbol Processing) is a Kotlin-first alternative to kapt. KSP analyzes Kotlin code directly, which is up to 2x faster. It also has a better understanding of Kotlin's language constructs.

Kapt is now in maintenance mode, and we recommend migrating from kapt to KSP wherever possible. In most cases, this migration only requires changes to your project's build configuration.

Dagger 2.48 introduced KSP support as alpha feature.
Hilt has support for KSP since 1.1.0: https://developer.android.com/jetpack/androidx/releases/hilt#1.1.0-alpha01

Given we only use a small subset of features of Dagger/Hilt, I believe we can start using it when it’s released as beta. Follow google/dagger#4180 first before migrating

[papjul]

Low priority as there seems to be concerning performance issues. Might as well switch to a different lib than Dagger