Fix mismatch between hit boxes and drawn items in legend plugin (#11352)

* Fix mismatch between hit boxes and drawn items in legend plugin

* fixes padding calculation

Author: stockiNail

src/plugins/plugin.legend.js

@@ -428,7 +428,7 @@ export class Legend extends Element {
         cursor.x += width + padding;
       } else if (typeof legendItem.text !== 'string') {
         const fontLineHeight = labelFont.lineHeight;
-        cursor.y += calculateLegendItemHeight(legendItem, fontLineHeight);
+        cursor.y += calculateLegendItemHeight(legendItem, fontLineHeight) + padding;
       } else {
         cursor.y += lineHeight;
       }
@@ -575,7 +575,7 @@ function calculateItemHeight(_itemHeight, legendItem, fontLineHeight) {
 }
 
 function calculateLegendItemHeight(legendItem, fontLineHeight) {
-  const labelHeight = legendItem.text ? legendItem.text.length + 0.5 : 0;
+  const labelHeight = legendItem.text ? legendItem.text.length : 0;
   return fontLineHeight * labelHeight;
 }