[pgAdmin4][Patch#3046] To display connection status in IE11 & Firefox properly

Hi,

PFA patch to fix the issue where connection status was not displaying in query tool when open with IE11 and Firefox, apparently found that these browser do not support displaying svg as content in div element directly.

Now I have tested new changes with Chrome, Firefox, Opera, Safari, Edge & IE11 and it's working as expected.

RM#3046