Dependencies upgrading

react and react-dom: following alpha tag until concurrent mode includes in the stable release.
@dimensiondev/webextension-shim: MUST match the version from the iOS side.
@dimensiondev/stego-js: See DimensionDev#2139
idb: Do NOT upgrade to 6.0.0 because it contains incompatible type helpers within our project.
stream-http: DO NOT upgrade to version 3, it is used as a polyfill in Webpack but version 3 seems breaking.
Blockchain related: contact @guanbinrui

Other dependencies

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