Fix comments on Java Actions.moveToElement (#6974)

According to https://w3c.github.io/webdriver/#dfn-center-point step 1,
the element center point is calculated by getClientRects.

Co-authored-by: David Burns <david.burns@theautomatedtester.co.uk>

java/client/src/org/openqa/selenium/interactions/Actions.java

@@ -351,7 +351,7 @@ public Actions doubleClick() {
 
   /**
    * Moves the mouse to the middle of the element. The element is scrolled into view and its
-   * location is calculated using getBoundingClientRect.
+   * location is calculated using getClientRects.
    * @param target element to move to.
    * @return A self reference.
    */
@@ -365,7 +365,7 @@ public Actions moveToElement(WebElement target) {
 
   /**
    * Moves the mouse to an offset from the center of the element.
-   * The element is scrolled into view and its location is calculated using getBoundingClientRect.
+   * The element is scrolled into view and its location is calculated using getClientRects.
    * @param target element to move to.
    * @param xOffset Offset from the center. A negative value means coordinates left from
    * the element.