Short name requirements

[frangio]

The shortName field is a little inconsistent right now, and a few stand out as not particularly short and with varying combinations of capitalization, spaces, and dashes. (E.g. "Telos EVM", "CELO", "Ontology Testnet", "aurora-testnet", "tpalm" with "t" prefix indicating testnet.)

I couldn't find guidelines for the correct or expected formatting, and I think it would be beneficial to standardize it a little more.

I would suggest at the very least a requirement of no spaces. On top of that, it should try to be reasonably short, thus generally not the same as the name field. The vast majority right now are lowercase and I personally think that's preferable.

I think it is implicit but could be made explicit, that the short name must be unique.

I suppose these requirements could be mentioned in the "new chain" issue template.

[ligi]

Good point - PRs welcome ;-)

that the shortName must be unique is enforced by the CI as it is a hard requirement for TREZOR

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