fix: remove "This is the beginning of the conversation" flicker

[neekolas]

What does this PR do?

• The "This is the beginning of the conversation" text would flicker when the page was loaded. This changes around the behaviour of the hasMore property so that it doesn't toggle between true and false while the first page is loading.

Fixes # (issue)

CleanShot.2022-10-31.at.11.17.47.mp4

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Enhancement (non-breaking small changes to existing functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How should this be tested?

• Go to a conversation with more than 15 messages. Reload the page and scroll to the top. All messages should be displayed
• Go to a conversation with more than 30 messages. Reload the page and scroll to the top. All messages should be displayed
• Go to a conversation with less than 15 messages. There should be no flicker on the "This is the beginning of the conversation" text when loading.

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Name	Status	Preview	Updated
lenster	✅ Ready (Inspect)	Visit Preview	Oct 31, 2022 at 6:23PM (UTC)