fix(input): do not focus input element twice (#12851)
fix(input): do not focus input element twice (#12851)

* Currently if a user clicks on a input, the element receives focus and the `click` event bubbles up. Once it reaches the `<mat-form-field>`, the click event will cause the `onContainerClick` method to be invoked. This method then manually focused the input element (again). Resulting in unexpected behavior for time inputs in Firefox.

Fixes #12849
josephperrott/material2,andrewseguin/material2,angular/components,mmalerba/material2,angular/components,josephperrott/material2,josephperrott/material2,crisbeto/material2,crisbeto/material2,andrewseguin/material2,mmalerba/material2,Jefiozie/material2,andrewseguin/material2,DevVersion/material2,josephperrott/material2,DevVersion/material2,angular/components,crisbeto/material2,josephperrott/material2,mmalerba/material2,DevVersion/material2,DevVersion/material2,andrewseguin/material2,jelbourn/material2,Jefiozie/material2,jelbourn/material2,mmalerba/material2,DevVersion/material2,andrewseguin/material2,Jefiozie/material2,Jefiozie/material2,Jefiozie/material2,angular/components,crisbeto/material2,mmalerba/material2,jelbourn/material2,jelbourn/material2,jelbourn/material2