Custom tokens must have between 0 and 12 characters

[ggviana]

Custom token ui shouldn't show error when the a token symbol has exactly 12 characters

Fixes #7668

[Gudahtt]

The intention was to limit token symbols to a maximum of 11 characters; the error message was just worded poorly.

While we could certainly consider increasing that limit, this doesn't fix the linked issue. If anything this makes the error message more misleading, as now the range given ("between 0 and 12") is exclusive on one end and inclusive on the other.

[whymarrh]

To follow-up to @Gudahtt's comment, we could maybe adjust the message to add a qualifier like so:

Symbol must be between 1 and 12 characters, inclusively.

Or even:

Symbol must be 11 characters or fewer.

[whymarrh]

@ggviana do you want to try updating this PR? Let me know if I can help out.

[ggviana]

@whymarrh I updated the error messages and provided the translations.
Please let me know if there's anything else I can do to fix this issue.

[whymarrh]

Thanks, @ggviana! This looks good to me!