[Windows] Fixed runtime update issue for SearchBar PlaceholderColor and BackgroundColor#29965

PureWeen merged 3 commits intodotnet:inflight/currentdotnet/maui:inflight/currentfrom

Tamilarasan-Paranthaman:SearchBar-Color-IssuesTamilarasan-Paranthaman/maui:SearchBar-Color-IssuesCopy head branch name to clipboard