feat: add Revolut Euro stablecoin icon and metadata (ethereum + polygon)

[sremartins]

Adds metadata and icon for EURR on Ethereum Mainnet and Polygon mainnet

Networks: Ethereum Mainnet (eip155:1) and Polygon Mainnet (eip155:137)
Token standard: ERC-20
Token name: Revolut Euro
Symbol: EURR
Decimals: 6
Coingecko page: https://www.coingecko.com/en/coins/revolut-euro

Ethereum:
Contract: 0x8e9c32A536Ab623a2e0e9961BcE6F5fe7504e084
Token tracker page: https://etherscan.io/token/0x8e9c32A536Ab623a2e0e9961BcE6F5fe7504e084

Polygon:
Contract: 0x11b20f798b70df2201D8F550ADDcc3378b33dd4A
Token tracker page: https://polygonscan.com/token/0x11b20f798b70df2201D8F550ADDcc3378b33dd4A

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Note

Low Risk
Adds static token registry assets only; no application or security logic changes.

Overview
Registers Revolut Euro (EURR) as an ERC-20 asset on Ethereum mainnet and Polygon, following the usual icon + metadata + labels pattern.

For each chain, the PR adds an SVG logo, metadata (name, symbol, decimals: 6, logo path), and a badges:v1:stablecoin label. Contract addresses differ per network (0x8e9c… on Ethereum, 0x11b2… on Polygon); the icon artwork is the same on both.

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