feat: fixed extra scroll on claims-form (#37931)

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## **Description**
Fixed extra scroll on claims form. There is a hidden input field inside
the component with sr-only tailwind class. this element needs relative
parent so it will not be placed on unexpected location

https://consensyssoftware.atlassian.net/browse/SUBS-761
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CHANGELOG entry: fixed extra scroll on claims-form

## **Related issues**

Fixes:

## **Manual testing steps**

1. Go to this page...
2.
3.

## **Screenshots/Recordings**

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### **Before**
<img width="752" height="1502" alt="image"
src="https://github.com/user-attachments/assets/f71fd546-b4eb-4d6b-a45c-b36079b96dd8"
/>

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### **After**


https://github.com/user-attachments/assets/03a5b6b3-90b4-41d2-94fa-d79b8a2fbb1a


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<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Adds `relative` to the FileUploader drop area container class to
adjust positioning.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
c19b9a5. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Co-authored-by: Chaitanya Potti <[email protected]>

Author: lionellbriones

ui/components/component-library/file-uploader/file-uploader.tsx

@@ -197,7 +197,7 @@ export const FileUploader = ({
         onKeyDown={handleKeyDown}
         {...dropAreaProps}
         className={twMerge(
-          'flex flex-col items-center justify-center w-full p-6 gap-2 text-center rounded-lg border border-dashed border-default hover:bg-background-default-hover hover:border-solid cursor-pointer focus:outline-none focus:ring-2 focus:ring-primary-default focus:ring-offset-2',
+          'relative flex flex-col items-center justify-center w-full p-6 gap-2 text-center rounded-lg border border-dashed border-default hover:bg-background-default-hover hover:border-solid cursor-pointer focus:outline-none focus:ring-2 focus:ring-primary-default focus:ring-offset-2',
           isDragging && 'bg-background-default-hover border-solid',
           dropAreaProps?.className || '',
         )}