rename header title and subtitle

[MoMannn]

Description

Replace header and sub header with more meaningful text.

Manual testing steps

1. Go to http://localhost:8000/
2. Grant permission

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask 7715 Permissions Snaps Contributor Docs and MetaMask 7715 Permissions Snaps Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

---

Note

Standardizes permission titles: periodic -> "Token Subscription" and stream -> "Token Stream" for both ERC20 and native tokens.

• Permissions:
  • Rename title to "Token Subscription" in:
    • packages/gator-permissions-snap/src/permissions/erc20TokenPeriodic/index.ts
    • packages/gator-permissions-snap/src/permissions/nativeTokenPeriodic/index.ts
  • Rename title to "Token Stream" in:
    • packages/gator-permissions-snap/src/permissions/erc20TokenStream/index.ts
    • packages/gator-permissions-snap/src/permissions/nativeTokenStream/index.ts

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[jeffsmale90]

The world smallest nit!

[jeffsmale90]

Let's go!