Bug fixes and performance improvements

* To keep getting the latest Fitbit app updates, you'll need to make sure your device is running Android 11 or later.
 * Bug fixes and performance improvements.

Supports latest Fitbit models.

Quickly find your lost Fitbit device!
- Updated device detection list

The most accurate Fitbit Finder just got better!
- Bug fixes

- iOS 11 bug fixes

- Bug fixes
- Support for latest Fitbit devices

- Improved accuracy when looking for Fitbit Alta and Blaze

Bug fixes.

Added iPad support.

- Support Fitbit Charge
- Faster device searching

- Reworked UI, to plot the signal strengths of the whole session with clear color themes
- Improved algorithm, to filter out noise and help find fitness wristband quicker