Cleanuparr

## What's Changed
### Bug Fixes
* Fix notifications not being sent asynchronously by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/811
* Fix search command tracking for Lidarr, Readarr and Whisparr v3 by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/814
* Fix dry run leaking into live runs in some cases by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/822
* Fix queue traversal not properly handling season packs by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/827
### Maintenance
* Remove some old and unreachable code by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/804
* Deduplicate download client logic by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/812
* Extract magic values into constants by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/813
* Extract shared CSS tokens by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/816
* Reduce notification providers duplicated code by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/817
* Reduce settings pages duplicated code by @Flaminel in https://github.com/Cleanuparr/Cleanuparr/pull/818
* Standardize arr response DTOs by @Fla