Bug report

The fontSize tool gets focus after text selection. 

Steps to reproduce

* Open and run https://dojo.telerik.com/oRuLayir demo.

* Select /highlight Line4, choose 16 in the fontSize dropdown.

* Put the cursor at the end of Line6, select  Line4, Line5 and Line6 using the mouse. Note that the keyboard focus has shifted to the fontSize dropdown.

When the cursor is inside a table cell, typing the TAB key should move the cursor to the next table cell (moving left to right, top to bottom).