[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/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";