[pgAdmin4][RM#3154] Update modules to latest version

Hi,

PFA patch to update the modules to latest version.

We are not able to update some of the modules to latest version due to dependancy on other modules, For example

- Python: Flask-Security has dependancy on flask-babelex which causes conflict with flask_babel

- JS: Can't update to Bootstrap4 because Bootstrap Switch & Bootstrap Datetime picker has dependancy on Bootstrap3.