feat: now StarSearch conversation share link button has a loading state

[nickytonline]

Description

Now the StarSearch conversation share link button has a loading state so that it does not appear broken when generating a shareable link to a conversation.

Related Tickets & Documents

Fixes #3615

Mobile & Desktop Screenshots/Recordings

Before

After

Steps to QA

1. Create a StarSearch conversation from /star-search
2. Once the conversation completes, open the share menu just below the last message in the conversation.
3. Click Create share link.
4. Notice there is a loading state before the shareable link and CTAs to share to socials appear.

Tier (staff will fill in)

• [ ] Tier 1
• [ ] Tier 2
• [ ] Tier 3
• [x] Tier 4

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