docs(tabs): improvements to storybook for tabs (#2424)

Author: jenndiaz

components/picker/stories/template.js

@@ -202,22 +202,23 @@ export const Template = ({
 					hideIcon: true,
 			  })
 			: ""}
-		${Popover({
-			...globals,
-			isOpen: isOpen && !isDisabled,
-			withTip: false,
-			position: "bottom",
-			isQuiet,
-			customStyles: customPopoverStyles,
-			content,
-		})}
+	${when(content.length !== 0, () =>
+			Popover({
+				...globals,
+				isOpen: isOpen && !isDisabled,
+				withTip: false,
+				position: "bottom",
+				isQuiet,
+				customStyles: customPopoverStyles,
+				content,
+		}))}
 		${when (withSwitch, () => Switch({
 				...globals,
 				size,
 				label: "Toggle switch",
 				customStyles: {
 					"padding-inline-start": "15px"
 				}
-			})) }
+		}))}
 	`;
 };