add condition to not empty search filed when clicking Ctrl+f(issue6334)

remove searchBox value assignation to sel var without using it(issue6334)

Select all test when typing Ctrl+F when cursor is focus on searchBox input (issue6334)

fix condtion to match Ctrl+f key when user is already on searchBox (issue6334)

fix selecting text on searchBox when pressing search focus shortcut on searchBox (issue6334)