Fix building with ios17.4

[andydotxyz]

Latest Xcode breaks the build due to escalation of warnings to errors.
This also fixes related errors found at the time.

Checklist:

• Tests included.
• Lint and formatter run with no errors.
• Tests all pass.

[atljoseph]

Getting these warnings in macOS Console during iOS simulation.
This actually happens on myDialog.Show().

Data type not yet set for stream blendingUIHomeScreen, please switch to APIs that take eventDataClass as a parameter.

Error acquiring assertion: <Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process does not exist" UserInfo={NSLocalizedFailureReason=Specified target process does not exist}>

Scene FBSceneManager/sceneID:app.example.fudge-default update failed: <NSError: 0x600000d5e2b0; domain: FBSceneErrorDomain; code: 1 ("operation-failed"); "Scene update failed."> {
    NSUnderlyingError = <NSError: 0x600000c32c40; domain: FBWorkspace; code: 1; "Scene client is invalid.">;
}

Lemme know if you want additional logs.

[andydotxyz]

Getting these warnings in macOS Console during iOS simulation.

Are you sure that's a 17.4 iOS simulator?

[coveralls]

coverage: 65.412% (-0.02%) from 65.435%
when pulling 612e0a9 on andydotxyz:fix/ios17.4
into 64496b3 on fyne-io:release/v2.4.x.

[andydotxyz]

That windows failure is the one that's fixed on the develop workflow