Fix Swift compilation errors in iOS code

[codegen-sh]

This PR fixes several Swift compilation errors in the iOS codebase:

1. Fixed missing frame parameter in UITableView initialization in AIViewController.swift
2. Added override keyword to refreshContent() method in AIViewController.swift
3. Fixed contextual base issues for UIColor and UITableView properties in AIViewController.swift
4. Removed duplicate topMostViewController() method in DebuggerManager.swift
5. Renamed PerformanceMetrics struct to PerformanceMetricsData to resolve ambiguity in PerformanceViewController.swift
6. Fixed unbalanced parentheses in ChatViewController.swift by correcting DispatchQueue.main.async syntax

These changes resolve all the compilation errors reported in the build log.

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