Fix SwiftLint and SwiftFormat violations

- Run SwiftFormat to fix indentation, spacing, and formatting issues
- Replace CGFloat with Double and NSRect with CGRect per style guide
- Remove redundant .center alignment specifications
- Remove unnecessary @available checks for satisfied deployment targets
- Fix closure brace indentation for consistency
- Disable closure_end_indentation rule to resolve SwiftFormat conflict

All linting checks now pass with zero errors and warnings.

Shared/Navigation/AccountsView.swift

@@ -4,7 +4,7 @@ struct AccountsView: View {
     @StateObject private var model = AccountsViewModel()
     @Environment(\.presentationMode) private var presentationMode
     #if os(tvOS)
-    @Environment(\.colorScheme) private var colorScheme
+        @Environment(\.colorScheme) private var colorScheme
     #endif
 
     var body: some View {