fix(PDiskSpaceDistribution): increase slot height, display 0 id (#1071)

Author: artemmufazalov

src/containers/PDiskPage/PDiskSpaceDistribution/PDiskSpaceDistribution.scss

@@ -37,7 +37,7 @@
 
         padding: 0 var(--g-spacing-2);
 
-        line-height: 13px;
+        line-height: 15px;
     }
 
     &__slot-id {

src/containers/PDiskPage/PDiskSpaceDistribution/PDiskSpaceDistribution.tsx

@@ -185,7 +185,7 @@ function SlotContent({id, title, used, total}: SlotContentProps) {
     return (
         <div className={b('slot-content')}>
             <span>
-                {id ? <span className={b('slot-id')}>{id}</span> : null}
+                {valueIsDefined(id) ? <span className={b('slot-id')}>{id}</span> : null}
                 {title}
             </span>
             <span className={b('slot-size')}>{renderSize()}</span>