docs: Update PR template

[yurixander]

Summary of changes

Provide a detailed description of proposed changes.

• ➕ Added an optional checklist to help remember things.
• 🔧 Small updates to the PR template.

Proposed area of change

Put an x in the boxes that apply.

• apps/bridge-dapp
• apps/hubble-stats
• apps/stats-dapp
• apps/tangle-dapp
• apps/testnet-leaderboard
• apps/faucet
• apps/zk-explorer
• libs/webb-ui-components

Reference issue to close (if applicable)

Specify any issues that can be closed from these changes (e.g. Closes #233).

• Closes

Screen Recording

If possible provide a screen recording of proposed change.

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Code Checklist

Please be sure to add .stories documentation if any additions are made to libs/webb-ui-components.

• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

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[netlify]

✅ Deploy Preview for tangle-dapp ready!

Name	Link
🔨 Latest commit	79ce7d2
🔍 Latest deploy log	https://app.netlify.com/sites/tangle-dapp/deploys/66fdfcf9f6e0b00008a6e8a2
😎 Deploy Preview	https://deploy-preview-2576--tangle-dapp.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

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To edit notification comments on pull requests, go to your Netlify site configuration.