Status title is appended to status message

[aeschli]

In the Java extension, we use the `window.withProgress' API with a title(in ProgressOptions) and messages.

When rendered the label that is shown is messages followed by title.
That's a bit strange and only works well if the message is just a percentage. If it also contains text, appending the title looks wrong.

[jrieken]

@aeschli What is your suggestions? Where should the title go?

[aeschli]

Intuitively, I'd say 'title' before 'message'. But I understand that some users put the percentage in the message. So maybe the API should include a percentage field. (I know I once recommend to remove it as it wasn't used at the time). Or the title just shows up as a tooltip on the wheel or when there is no message.

[jrieken]

@aeschli Feel free to do whatever change is needed. I am not really a consumer of that UX and don't know well enough what is needed. Now that we have a good and rich usage, I suggest to make it work for that and see what feedback we get

[aeschli]

I made a change that the title is only used when there is no message. It is also used for the tooltip header.