Rename enable/disable button to enabled/disabled

[Doksha]

To enable the extension, you click disable, and to disable it you click enable.
The state (on or off) of the actual switch is correct (on for enabled, off for disabled)

Alternatively, just make it past tense so the text reflects the current state.

[jgoedde]

Hey,

I wanted to provide an update on the progress for this issue. I've forked the repo and have update the langkeys.

Only thing that's not so clear to me is where to add the new langKey "Enabled". Do I commit the new text to /public/_locales submodule?

What's left:

• Adding the new lang key (Enabled) to the translation system. Disabled lang key already existed.

I'd appreciate any feedback on my approach so far before I move forward. You can check my forked branch here.

Thanks!

[jgoedde]