Camera move always adjusts zoom

**Describe the bug**
When using cameraMove, the `calculatedZoomLevel` sets a new zoomLevel that is slightly different than the current value. This results in minor zoom when attempting to just move the camera

**To Reproduce**
Steps to reproduce the behavior:
1. Go to 'Camera control'
2. Click on 'newLatLng'
4. click on 'newLatLng' additional times

**Expected behavior**
Lat long should move, camera zoom should stay constant

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Smartphone (please complete the following information):**
- Device: iPad 12.9 simulator
- Version iOS 17.4

**flutter doctor**
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.27.1, on macOS 14.4.1 23E224 darwin-arm64 (Rosetta), locale en-US)
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 15.3)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2023.2)
[✓] VS Code (version 1.96.0)
[✓] Connected device (6 available)
[✓] Network resources

• No issues found!