Feat: gas price in header

[katspaugh]

What it solves

Allows the user to check the gas price quickly which is convenient when executing transactions.

Todo

• Cache the gas price between polls so that tx modals use the same value
• Don't display it for chains where we use a fixed price (?)

[github-actions]

Branch preview

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https://gas--walletweb.review-wallet-web.5afe.dev

[github-actions]

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Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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