Extensions

1. Default screen
2. "Add new extension from list" screen
3. "Create custom extension" screen
4. Edit extension screen
5. Verify state for "delete"
6. Success state for "delete"
7. Manage/fix errors screen

*NOTE: Local vs. Remote was purposely left out of the screens with input fields. I'm waiting to hear what to about it from Roy.

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#1 Default screen (with error on widgetbox extension)