0 is rendered as 0.000

[ECWireless]

Describe the bug

In TreasuryVotingWidget, and likely other locations, a zero value is being rendered as 0.000, rather than just 0:

This makes it look like the value is something smaller than 0.000, rather than actually being 0.

abbreviateNumber should probably be modified to return "0," if the arg is 0, rather than running it through Number.parseFloat(newValue).toPrecision(precision).

To Reproduce

• If you have 0 voting power, go to a treasury proposal
• Check your voting power in the TreasuryVotingWidget on the right

Expected behavior

If you have 0 voting power, it should be rendered as "0", not "0.000"

Screenshots

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Desktop OS

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Desktop Browser

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Desktop Wallet

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Desktop App/Extension Version

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Smartphone Device

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Smartphone OS

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Smartphone Browser

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Smartphone Wallet

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Smartphone App/Extension Version

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Additional context

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[rickstaa]

@ECWireless It would be great if your team could combine this with a broader effort to improve formatting and establish a clearer single source of truth across the entire explorer. See #414, which moves in this direction but still has some outstanding issues. Thanks!