[WEB-5135] refactor: update sites ESLint configuration and refactor imports to use type imports (#7956)

- Enhanced ESLint configuration by adding new rules for import consistency and type imports.
- Refactored multiple files to replace regular imports with type imports for better clarity and performance.
- Ensured consistent use of type imports across the application to align with TypeScript best practices.

Co-authored-by: sriram veeraghanta <veeraghanta.sriram@gmail.com>

apps/space/app/[workspaceSlug]/[projectId]/page.ts

@@ -1,7 +1,7 @@
 import { notFound, redirect } from "next/navigation";
 // plane imports
 import { SitesProjectPublishService } from "@plane/services";
-import { TProjectPublishSettings } from "@plane/types";
+import type { TProjectPublishSettings } from "@plane/types";
 
 const publishService = new SitesProjectPublishService();
 

apps/space/app/layout.tsx

@@ -1,4 +1,4 @@
-import { Metadata } from "next";
+import type { Metadata } from "next";
 // helpers
 import { SPACE_BASE_PATH } from "@plane/constants";
 // styles

apps/space/app/provider.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { FC, ReactNode } from "react";
+import type { ReactNode, FC } from "react";
 import { ThemeProvider } from "next-themes";
 // components
 import { TranslationProvider } from "@plane/i18n";