chore: setup-test-service-client + Test - Member sending text, image, audio file to group conversation - WPB-19008

[findms]

WPB-19008 [iOS/QA]Chore: Setup TestServiceClient functions in new automation

Issue

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Testing

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Checklist

• Title contains a reference JIRA issue number like [WPB-XXX].
• Description is filled and free of optional paragraphs.
• Adds/updates automated tests.

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UI accessibility checklist

If your PR includes UI changes, please utilize this checklist:

• Make sure you use the API for UI elements that support large fonts.
• All colors are taken from WireDesign.ColorTheme or constructed using WireDesign.BaseColorPalette.
• New UI elements have Accessibility strings for VoiceOver.