Interface - Public Testnet release updates

[jurevans]

With the extension update in #551, there are a few small tasks for the interface before we re-publish it:

• Bump interface & packages to 0.2.0 (to match extension)
• Update components to use newest components where the display is quite affected (especially where it prevents text from being readable)
• Make sure Settings button shows up so users can select currency (not appearing for me in desktop mode, but appears in mobile menu)
• There may be a potential issue with integrations as they are indexed by chain ID - we may want to move this instead to extension-related keys, like namada | keplr | metamask and avoid indexing things with chain ID (not sure if we want to do this for accounts to, as that would affect IBC, where we are loading Keplr accounts by chain ID, but that may be a future task) - I believe this is why the integration fails to work correctly when the extension & interface are built with different chain IDs - this should fix that
• Make Update balance fetch more efficient - this is getting called inadvertently, which can cause issues with slow connections (like the testnet), where if you switch from testnet to a local node, the new balances display, then the old balances come back when the extra testnet balance call finishes. Also, it appears that these requests are being issues more often than needed (NOTE We are querying for a lot of token types now, so if these are inadvertantly re-issued, that's a lot of extra requests)