Removed the indefinite loading state when there are no posts ✅

[kareemabdeen]

Description

This PR fixes the Discover Posts View Stuck on Loading issue where users were not receiving any feedback when no posts were available. Instead of an indefinite loading state, a "No Posts Yet" message is displayed.

Motivation & Context:

• Users were left without feedback when the Discover screen had no posts.
• The fix improves UX by providing clear visibility when no content is available.
• Affects both mobile and web versions.

Type of Change

• Bug Fix (Fixes an issue without breaking existing functionality)
• New Feature (Adds a new, non-breaking feature)
• Breaking Change (Existing functionality might not work as expected)
• Refactor (Code improvements without affecting functionality)
• Documentation Update (Changes related to documentation)

How Has This Been Tested?

Please describe the tests conducted to verify the fix. Include test steps for reproduction.

Test Cases:

1. Scenario: No posts are available.
   • Expected Result: The "No Posts Yet" message is displayed instead of a loading spinner.
2. Scenario: Posts are available.
   • Expected Result: Posts load correctly without unnecessary loading indicators.

✅ Tested on:

• Mobile (Android/iOS)
• Web

📸 Screenshots (if applicable):
Before Fix
https://github.com/user-attachments/assets/2c9e3585-cc41-431d-86e3-e1a47e03af16
After Fix
https://github.com/user-attachments/assets/08f71108-df26-45a5-83d9-4000c5c455c4

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Checklist

• Code follows project style guidelines
• Performed self-review of the code
• Added comments where necessary
• Made corresponding updates to documentation
• No new warnings or errors generated
• Added tests to verify the fix or feature works
• Existing unit tests pass successfully
• Merged and published any dependent changes

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Maintainer Checklist

• Closes issue #xxxx (Replace xxxx with the GitHub issue number)
• Tagged PR with appropriate labels

[kareemabdeen]

Can you please review? 🙏🏼 @mdmohsin7