[Bug]: 'Show More' Button Misalignment and Missing on Revisit

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Observed behavior

1. On the first visit, the 'Show More' button is not centered.
   Screenshot:
   

2. On revisiting the same page:

   • The 'Show More' button does not appear.
   • Screenshot:
     

3. In Level 2, there are 35 resources available. However:

   • On the first visit, only 25 documents are loaded.
   • When revisiting, the 'Show More' button does not appear, likely due to preloaded content.
   • Screenshot:
     

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Expected behavior

1. The 'Show More' button should be centered.
2. The 'Show More' button should appear consistently when revisiting the page.
3. All 35 resources should be accessible, either by scrolling or by using the 'Show More' button.

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User-facing consequences

1. Users might find it inconvenient or confusing due to:
   • Misalignment of the button on the first visit.
   • Missing 'Show More' button when revisiting, which limits access to all resources.

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Errors and logs

No errors or logs observed.

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Additional information

• The issue might stem from content preloading logic, which prevents the 'Show More' button from appearing when revisiting pages.

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Steps to reproduce the issue

1. Go to https://hotfixes.studio.learningequality.org/en/accounts/#/ and sign in.
2. Open a channel and click Add > Import from channels > African Storybook Library (multiple languages) > Afrikaans > Level 2.
3. Observe the following:
   • The alignment of the 'Show More' button on the first visit.
   • The 'Show More' button missing when revisiting the same page.
   • Only 25 out of 35 resources accessible on revisit.

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Usage Details

• OS: Ubuntu
• Browser: Chrome
• URL: https://hotfixes.studio.learningequality.org/
• Other information: N/A

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Reproduce the issue at https://hotfixes.studio.learningequality.org/en/accounts/#/ by following the channel import path to African Storybook Library, Afrikaans, Level 2. Inspect the resource-loading and revisit behavior, then verify that all 35 resources are accessible and the centered “Show More” button remains available when needed. No source files or tests are named in the issue.