feat: Add logo link to AdminLogin component with hover effects

[CocoRoF]

This pull request enhances the visual design and interactivity of the admin superuser login page, focusing on the logo and its surrounding elements. The main improvements include adding a clickable logo that links to the homepage, introducing interactive hover and active effects for the logo, and refining the visual title's styling.

UI Interactivity and Navigation:

• Made the logo on the admin login page clickable by wrapping it in a Link component that navigates to the homepage. (AdminLogin.tsx)
• Added a new .logoLink CSS class with hover and active effects to visually scale the logo when interacted with, improving user feedback. (AdminLogin.module.scss)

Visual Styling Enhancements:

• Applied a smooth transition effect to the .visualTitle for better animation during state changes. (AdminLogin.module.scss)
• On logo hover, the visual title now displays a gradient text effect for a more dynamic appearance. (AdminLogin.module.scss)

Codebase Maintenance:

• Imported the Link component from next/link to enable client-side navigation for the logo. (AdminLogin.tsx)