Show other assets in Holdings tab – reflect multi asset chain in graph section

[basvansambeek]

With the IOTA ecosystem expanding to 3 main coins, and potentially unlimited L1 and L2 tokens, the current graph in Firefly will likely have to be completely redesigned.

I would at least think that IOTA, SMR and ASMB will be shown under Token and Holding, and perhaps their accumulated worth be shown under Portfolio, with something like a stacked graph. This will give a more interesting dynamic in the graph section, which has been a bit plain up until now.

As an additional thought, some sort of filter option might also become necessary, since you could spam an account with any useless promotion coin with relatively little effort. I would like to track the holdings of my choice; not have a copy of my email inbox. This probably best be moved to Settings though, since it would clutter up the UI, and it's a a mitigation of malicious behaviour, not a main feature.

This might expand beyond the graph section, since the wallets can also show potentially unlimited tokens if they are opened to dust for whatever reason, but for the focus of the discussion it might be better to focus on the graphic representation of assets in the graph here, and open a discussion on the wallet in another thread.