update banner for minswap dex

[0xj4m35]

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1. Please complete a Checklist
2. Fill in all sections of the template
3. Click "Create pull request"

Checklist

<-- Please fill the boxes with [x] before submitting a pull request -->

• I have read the How to Contribute.
• I have run yarn build after adding my changes without getting any errors.
• I have not committed any changes to yarn.lock (or have removed these changes).

Updating documentation or Bugfix

Since Minswap launched V2, we have rebranded with a new logo and style, and also updated the app's domain.

[rphair]

looks good... keep in mind, if considering whether your text is readable, that the image will never show larger than roughly 300px wide.

[0xj4m35]

@rphair it's fine. I tested all devices. Thank you 💯