[Tech Debt] Need to move modals management from ConversationContextMenu component to the ConversationModalsManager component

[Alexander-Kezik]

DIAL chat version

0.40

What happened?

Need to move modals management from ConversationContextMenu component to the ConversationModalsManager component

There is a several points why we should do that:

1. Modals are dependent on visibility of ConversationContextMenu component (if it's hidden for a some reason - we will not see modals)
2. effects, callback, etc., runs for each ConversationContextMenu render

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