RFR: 8328484: Convert and Opensource few JFileChooser applet test to main

[Prasanta Sadhukhan]

On Fri, 22 Mar 2024 08:55:26 GMT, Abhishek Kumar <abhiscxk at openjdk.org> wrote:

> Few closed manual applet JFileChooser tests convereted to PassFailJFrame based manual test.

Marked as reviewed by psadhukhan (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18447#pullrequestreview-1954414137