[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/helpers/authentication.helper.tsx

@@ -1,4 +1,4 @@
-import { ReactNode } from "react";
+import type { ReactNode } from "react";
 import Link from "next/link";
 // helpers
 import { SUPPORT_EMAIL } from "./common.helper";

apps/space/helpers/common.helper.ts

@@ -1,4 +1,5 @@
-import { clsx, type ClassValue } from "clsx";
+import { clsx } from "clsx";
+import type { ClassValue } from "clsx";
 import { twMerge } from "tailwind-merge";
 
 export const SUPPORT_EMAIL = process.env.NEXT_PUBLIC_SUPPORT_EMAIL || "";

apps/space/helpers/editor.helper.ts

@@ -1,6 +1,6 @@
 // plane imports
 import { MAX_FILE_SIZE } from "@plane/constants";
-import { TFileHandler } from "@plane/editor";
+import type { TFileHandler } from "@plane/editor";
 import { SitesFileService } from "@plane/services";
 import { getFileURL } from "@plane/utils";
 // services

apps/space/helpers/issue.helper.ts

@@ -1,7 +1,7 @@
 import { differenceInCalendarDays } from "date-fns/differenceInCalendarDays";
 // plane internal
 import { STATE_GROUPS } from "@plane/constants";
-import { TStateGroups } from "@plane/types";
+import type { TStateGroups } from "@plane/types";
 // helpers
 import { getDate } from "@/helpers/date-time.helper";
 

apps/space/helpers/state.helper.ts

@@ -1,5 +1,5 @@
 import { STATE_GROUPS } from "@plane/constants";
-import { IState } from "@plane/types";
+import type { IState } from "@plane/types";
 
 export const sortStates = (states: IState[]) => {
   if (!states || states.length === 0) return;