Updated to version 1.0.0.

With recent updates to episode pages on overcast.fm, this extension was able to become much less hacky. The "time remaining" element has been removed, as it's now officially provided by Overcast itself. Additionally, rewind and fast forward buttons have been provided by Overcast with your own configured seek back and forward settings (for example, 15 seconds back, 30 seconds foward). Because of this, your keyboard's media keys now map to those provided rewind and fast forward buttons and will seek back and forward in accordance with your Overcast settings.

Because of these changes to overcast.fm, this extension's version is now 1.0.0 and I have no plans to add future features. However, as overcast.fm changes over time, this extension will be kept updated to continue working.

Thanks Marco for making a great service!