[release/9.0.1xx-sr2] [Windows] Fix titlebar not being added to modals#26794

PureWeen merged 1 commit intorelease/9.0.1xx-sr2dotnet/maui:release/9.0.1xx-sr2from

backport/pr-26735-to-release/9.0.1xx-sr2dotnet/maui:backport/pr-26735-to-release/9.0.1xx-sr2Copy head branch name to clipboard