Enhance status icon with help text

Add help text for status icon based on upgrade availability.

Author: SMillerDev

Sources/BrewFeatureInstalled/Views/InstalledListRowView.swift

@@ -96,6 +96,7 @@ struct InstalledListRowView: View {
                 .font(.body)
                 .foregroundStyle(statusIconColor(viewModel: viewModel))
                 .accessibilityHidden(true)
+                .help(statusIconHelp(viewModel: viewModel))
 
             Text(viewModel.kind.chrome.badgeLabel)
                 .font(.brewCaption2)
@@ -123,6 +124,10 @@ struct InstalledListRowView: View {
         viewModel.showsUpgradeAvailable ? .brewStatusWarning : .brewStatusSuccess
     }
 
+    private func statusIconHelp(viewModel: InstalledListRowViewModel) -> String {
+        viewModel.showsUpgradeAvailable ? "An upgrade is available" : "Up to date"
+    }
+
     @ViewBuilder
     private func versionLine(viewModel: InstalledListRowViewModel) -> some View {
         switch viewModel.versionPresentation {