954484-Fix the PullToRefresh issues in the Maui Toolkit that occurs during testing.

[ShaliniSF79]

Root Cause of the Issue

Windows:
The main cause of the issue was when we navigate to next page, it was not disconnecting the handlers from the source level.

Description of Change

Windows:

• Before navigating to another page, we have to disconnect it manually in the sample level
• So that, it works properly

Screenshots

Before:

BeforePullIssue.mp4

After:

AfterPullIssue.mp4