Fix text entry focus issues across lobby UI

[MrS-ibra]

Text entry boxes were not focused correctly in several places across the lobby UI.

• Join password popup now focuses the password field on open
• Create lobby popup focuses the lobby name field on open
• Lobby list screen chat focuses correctly after transitions
• Lobby setup chat maintains focus after changes.
• Communicator focuses chat entry when selecting a friend

[github-actions]

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