Transform dialogs global css styles into css modules

[softcat23]

In order to provide portability of react components at a high-level, it is necessary to split global styles into smaller pieces.

In this ticket scope, the dialogs' styles should be transformed into CSS modules and these components should be moved into the new /views directory.
On the screenshot, I've highlighted panels, whose components can open modals:

[AndreiProkofev]

The issue is fixed and moved to testing. See PR#725