Add toast component with demo buttons on home page

[JustinPeng13]

Pull Request

Description

• Add toast component for success, error, info, warning
• Add toast demo buttons, functions, and state on home page
• Remove previous home page data

Related Issues

Resolves TAS-18: Notification Toast

Checklist

Please review and check the following before submitting your pull request:

• I have read the CONTRIBUTING.md document.
• My code follows the code style of this project.
• I have written tests for my changes (if applicable).
• All new and existing tests passed.
• I have updated the documentation accordingly (if applicable).
• I have added comments to my code, particularly in areas that may be confusing.

Screenshots (if applicable)

[Include any relevant screenshots or GIFs to visually demonstrate the changes.]

toast.mov

[gnimnix]

@JustinPeng13 , could u change your merge destination to DEV-6? also do a merge from DEV-6 to resolve any conflicts, thx!