RFR: 8400: Add more show options for JMX Console graphs [v2]

[Alex Macdonald]

On Sat, 31 May 2025 22:41:10 GMT, Marcus Hirt <hirt at openjdk.org> wrote:

>> Also cleaning up a little bit. There were some assumptions around the default XY chart that should be put in code etc.
>
> Marcus Hirt has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Spotless

application/org.openjdk.jmc.greychart.ui/src/main/java/org/openjdk/jmc/greychart/ui/views/ChartMenuBuilder.java line 469:

> 467: 			getShell().setText(Messages.CustomTimeRangeDialog_TITLE);
> 468: 			Control contents = super.createContents(parent);
> 469: 			contents.getShell().setSize(450, 300);

Gave this a try on my Linux machine, and the controls get cut-off horizontally a bit early. It will need another 100px on the width. 

![Screenshot From 2025-07-04 12-06-43](https://github.com/user-attachments/assets/aeed48d6-a7f9-47da-9b45-316e4f41a937)

An alternative could be to allow these dialogs to be resized. To do so, the `isResizable()` on the dialog class can be overriden as follows:

@Override
protected boolean isResizable() {
	return true;
}

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PR Review Comment: https://git.openjdk.org/jmc/pull/652#discussion_r2185797626