Bug: Redirect to FAQ search after closing ticket when inserting FAQ via AgentTicketCompose

[KhalilHamada-OTOBO]

We noticed an unexpected behavior when working with the AgentTicketCompose action and the FAQ integration.

Steps to reproduce:

1. Open a ticket.

2. Use AgentTicketCompose.

3. Use the FAQ option and perform a search.

4. Insert one or more FAQ articles into the message and Close the ticket..

After closing the ticket, the system automatically redirects to the FAQ search view:

http://localhost/otobo/index.pl?Action=AgentFAQSearchSmall;Subaction=Search;Profile=last-search;SortBy=FAQID;OrderBy=Down;TakeLastSearch=1;StartHit=1;Nav=None

Expected behavior:
After closing the ticket, the user should be redirected back to the ticket overview.

[svenoe]

The reason is that AgentFAQSearchSmall sets LastScreenOverview to which AgentTicketCompose redirects if the ticket is closed. Like AgentFAQExplorer, AgentFAQSearchSmall should not set LastScreenOverview if ($GetParam{Nav} && $GetParam{Nav} eq 'None').