chore: fix Sei native and Wrapped Sei logo sizing

[jeremytsng]

Description

Corrects the Sei token logos in contract-metadata so they match other token logos (they were rendering smaller than peers like USDC).

Updated icons (Sei Mainnet, eip155:1329):

• Native SEI — icons/eip155:1329/slip44:19000118.svg
• Wrapped Sei (WSEI) — icons/eip155:1329/erc20:0xE30feDd158A2e3b13e9badaeABaFc5516e95e8C7.svg

Both use Sei's maroon (#600014) token mark on a white background, sized to fill the circular crop the same way other coin logos in this repo do (e.g. usdc.svg is a full-bleed circle, ~98%). The mark's outer shape is a circle, so its square bounding-box corners are empty — only those empty corners are removed by the circular crop, and no part of the maroon mark clips. Filenames unchanged, so the metadata/*.json logo references resolve to the updated assets.

Testing

• yarn test — all checks pass.

[cursor]

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