RFR: JDK-8328379 : Convert URLDragTest.html applet test to main

[Prasanta Sadhukhan]

On Mon, 18 Mar 2024 20:53:50 GMT, Harshitha Onkar <honkar at openjdk.org> wrote:

> Following test - test/jdk/java/awt/dnd/URLDragTest/URLDragTest.html is converted from applet to main using PassFailJFrame. 
> 
> PassFailJFrame's `logArea()` is used for logging messages.

Marked as reviewed by psadhukhan (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18364#pullrequestreview-1948039625