Allow copying imagery URLs

[jidanni]

In "Imagery Preferences" > Imagery Providers, there at the bottom are
"Selected entries:" (P.S., I have to type the above words in by hand as
I am not allowed to copy them.)

OK in the "Selected entries:" there is a "Imagery URL" column.

Within that column there are some rather long URLs.

Let's say a user would like to copy one of those rather long URLs.

Alas, all he can do is look at them, not copy them.

Yes, they are all listed on https://josm.openstreetmap.de/wiki/Maps but still JOSM's "tight mouse copying policy"
is tougher that many highly proprietary programs.

(He also puts the mouse over the "V Activate" button, and sees a mouseover
that says "Copy selected defaults".
Alas it should say "Move selected defaults from the box above into the
box below.")

[Klumbumbus]

Replying to jidanni:

(P.S., I have to type the above words in by hand as

I am not allowed to copy them.)

Please don't mention this in every ticket. It is not the goal of JOSM to make every GUI text copyable.

Alas, all he can do is look at them, not copy them.

You can edit and copy the entries names and URLs in this list by double click or F2.

[Klumbumbus]

In 13425/josm:

fix #15933 - improve tooltip

[Klumbumbus]

the wording "copy" is ok as you can edit the entries in the lower list.