refactor: update project branding and structure for gregFramework

- Changed project title and tagline in docusaurus.config.js to reflect the new branding.
- Updated package.json and package-lock.json to rename the project to gregwiki-docs-site.
- Adjusted sidebar and documentation files to align with the new project structure and naming conventions.
- Enhanced documentation content for clarity and consistency across various sections.
- Added Prettier as a development dependency for code formatting.

This commit aligns the project with the new branding and improves overall documentation structure.

docs/releases/plugins/ffm-plugin-multiplayer-release.mdx

@@ -11,11 +11,11 @@ import ModReleasePage from '@site/src/components/ModReleasePage';
   dllName="FFM.Plugin.Multiplayer.dll"
   releaseReady={false}
   version="NotReleasedYet"
-  author="mleem97 / FrikaMF Community"
+  author="mleem97 / gregFramework Community"
   category="Plugin"
-  dependencies={['MelonLoader', 'FrikaMF']}
+  dependencies={['MelonLoader', 'gregFramework']}
   codeLanguages={['C#']}
-  description="Contains multiplayer-oriented plugin functionality for FrikaMF ecosystems."
+  description="Contains multiplayer-oriented plugin functionality for gregFramework ecosystems."
   banner="Multiplayer plugin release"
   releaseNotesPath="/mods/extensions/ffm-plugin-multiplayer"
 />