Update Android API level to 36

[buberdds]

On 31 Aug 2026 Android API 36 will be required https://support.google.com/googleplay/android-developer/answer/11926878.
if we plan to push any updates after this date we need to bump:

• Capacitor to v8 https://capacitorjs.com/docs/android/setting-target-sdk#android-target-sdk-matrix,
• capacitor plugins including our custom BLE plugin
• bump CI/CD