[FilterSearch]: Duplicate Scroll Bar Appears in FilterSearch Modal on View More Click, Scrolls to Top on Max Results Filter Adjustment

[sophieturner0]

Problem:

• When I click the View More button, a duplicate scroll bar appears in the FilterSearch modal.
• When I click the Max Results filter slider, the scrollbar automatically scrolls to the top.

closes: #2253

Issue ticket number and link:

• Ticket Number: [ 2253 ]
• Link: [ https://github.com/[FilterSearch]: Duplicate Scroll Bar Appears in FilterSearch Modal on View More Click, Scrolls to Top on Max Results Filter Adjustment #2253 ]

Evidence:

• Please see the attached image as evidence.

Acceptance Criteria

• Ensure only one scroll bar is visible in the FilterSearch modal when the View More button is clicked.
• The modal should not create any unnecessary duplicate scroll bars.
• When the Max Results filter slider is clicked, ensure the scrollbar does not automatically scroll to the top of the modal.

[sophieturner0]

Hi @Rassl, @tomsmith8, Please review this PR.