[Android] FontImageSource.Size property not working in ToolbarItem

### Description

Size property is not working when using FontImageSource inside ToolbarItem

### Steps to Reproduce

1. Open [this](https://github.com/AidarNurmukhametov/FontImageSourceBug) project.
2. Run on iOS/MacOS and notice that Size property is working properly
3. Run project on Android (I used API 30 emulator) and notice that ToolbarItem is too small

### Version with bug

Release Candidate 3 (current)

### Last version that worked well

Unknown/Other

### Affected platforms

Android

### Affected platform versions

Android 10

### Did you find any workaround?

-

### Relevant log output

_No response_

Start with the linked FontImageSourceBug reproduction project and run it on the Android 10/API 30 emulator, comparing the ToolbarItem with its iOS/MacOS behavior. Trace the Android ToolbarItem and FontImageSource sizing path; done means the Size property produces the expected toolbar item size on Android.

Written by the indexing model from the issue text.