RFR: JDK-8328225: Convert ImageDecoratedDnD.html applet test to main [v3]

[Damon Nguyen]

On Wed, 20 Mar 2024 17:10:54 GMT, Harshitha Onkar <honkar at openjdk.org> wrote:

>> Following test is converted to main using PassFailJFrame.
>
> Harshitha Onkar has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - minor fix
>  - instruction line-lengths

Makes sense. Confirmed OK with CTRL.

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Marked as reviewed by dnguyen (Committer).

PR Review: https://git.openjdk.org/jdk/pull/18315#pullrequestreview-1949549383