[web] Add handlers for drawer community items

Summary:
Adding hanndlers that will be used by the community items in the drawer
They will be used like CommunityDrawerItemHandler were used before in CommunityDrawerItem. They provide drawer community items with an onClick function, that defines how the items is
supposed to behave, an expanded boolean, that tells the community whether it is expanded, and a isActive boolean that tells whether the user has currently that exact chat selected.
issue: https://linear.app/comm/issue/ENG-3176/make-pressing-a-drawer-item-in-chat-tab-filter-available-chats

Test Plan: Tested with later diffs

Reviewers: kamil, tomek, michal

Reviewed By: tomek

Subscribers: ashoat, atul

Differential Revision: https://phab.comm.dev/D6974