Create content for selected dropdown item text style#3732

Manikandan-Kannan-1312 wants to merge 3 commits intohotfix/hotfix-v31.1.17syncfusion-content/maui-docs:hotfix/hotfix-v31.1.17from

SelectedDropDownItemTextStylesyncfusion-content/maui-docs:SelectedDropDownItemTextStyleCopy head branch name to clipboard