Add Guarda Wallet to showcase

[andreysem1chev]

👋 Hello there! Welcome. Please follow the steps below to tell us about your contribution.

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 read the Showcase Requirements
• 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).

Showcase addition

<-- Provide information for every bullet in the list below. The tags you select must match the tags in your changes to the showcase.js -->

• Title: Guarda Wallet
• Description: One secure multi crypto wallet, all assets in. Swap and store crypto across 70+ networks.
• Website: <link_to_project>
• Source:
• Tags:
  • wallet

[rphair]

In my opinion this wallet neither implements nor demonstrates anything in particular about Cardano and therefore wouldn't make sense as a showcase item on the Cardano Developer Portal.

[rdlrt]

Last I checked, this wallet did not have transparent staking, dApps, voting support and heavily lagged when it came to supporting upgrades.