Various fixes and improvements (#177)

- Remove custom `ESP_TARGET` and use `ESP_PLATFORM` everywhere
- Add `Loader` service functionality to `tt::app::` namespace
- Make `Loader` `PubSub` usable by exposing the messages
- Add board type to crash log
- Don't show SD card in Files app when it's not mounted
- Set default SPI frequency for SD cards
- Move TT_VERSION to scope that works for sim too
- Log Tactility version and board on boot
- Rename "Yellow Board" to "CYD 2432S024C"

.github/workflows/build-sdk.yml

@@ -11,7 +11,7 @@ jobs:
       - name: "Build"
         uses: ./.github/actions/build-sdk
         with:
-          board_id: yellow-board
+          board_id: cyd-2432S024c
           arch: esp32
   esp32s3:
     runs-on: ubuntu-latest