Add copy button to the translator

[baselakasha]

I have added a copy button to the translator. That increases the productivity of the application.

[tjvr]

Can you explain more about how you're using the translator? Why is a copy button so useful? :-)

[baselakasha]

I am a volunteer translator in the Raspberry Pi Foundation. I use this translator to translate scratch codes from English into other languages.

A copy button will make it easier to copy the code. And that will increase my productivity.