* Check offline status immediately.
* If they start the page offline, show a less severe error message.
* Get rid of offline aware header. Disable wallet options when offline.
* Add online indicator to the header.
* Prevent some components from render, some requests from firing when offline.
* Allow for array of elements with typing.
* Dont show dollars in fee summary when offline.
* Fix up saga tests.
* Fix sidebar component offline styles.
* Remove force offline.
* Dont request rates if offline.
* Nonce in advanced, show even of online.
* Show invalid advanced props.
* Fix up offline poll tests.
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