Fixes: #926.
Gas estimations were not being decoded correctly (indicated with "error getting gas price predictions" in the console) and were preventing transaction dialogs from continuing past the step containing the GasSelector component. This affected mainnet only, because in testnet we have hardcoded gas prices (for when the gas prices on mainnet are insane) which is why it was not apparent in testnet.
fix: Contract address not showing correctly
This was caused by `getStickerMarketContractAddress` being moved to `utilsView` but not updated in QML
Closes: #586
Previously, loading sticker packs and stickers would show a lot of blank and non-interactive content.
Now, stickers and sticker packs have grey circles to indicate loading. Additionally, the sticker market button (+) shows a loading indicator until the sticker packs are loaded.
Related to: #586.
Adds a loading state to stickers, so that a loading indicator appears while the sticker is being downloaded from IPFS.
In the case of a network failure or timetout, a reload button is shown instead. Once network is restored and the reload button is clicked, the image is reloaded from the network, going through the same lifecycle of showing the loading state first.
This component introduces `StatusLetterIdenticon`, `StatusImageIdenticon`
and `StatusIdenticon`.
- `StatusLetterIdenticon` renders an identicon with a single letter based on a
name.
- `StatusImageIdenticon` renders an actual image based on an identicon URL
- `StatusIdenticon` is a composition of the former both, but with a loading mechanism
to decide which should be rendered
The commit also ensures all of these components are used respectively throughout
the application.