Refactor subscription logic and replace quill-sense references with ritor equivalents

- Updated `getCurrentSubscription` and related functions to reflect terminology changes.
- Adjusted subscription levels and access checks to streamline logic.
- Removed unused cases in `getSubLevel` and optimized conditionals for clarity.

lib/utils/user.ts

@@ -1,7 +1,7 @@
 import {GuideTour, Subscription, UserProps} from "@/lib/types/user";
 import {SessionProps} from "@/lib/types/session";
 
-export function getCurrentSubscription(user: UserProps | null, type: "quill-sense" | "use-your-keys" | "quill-trial"): Subscription | null {
+export function getCurrentSubscription(user: UserProps | null, type: "ritor-subscription" | "use-your-keys" | "ritor-trial"): Subscription | null {
     if (!user || !user.subscription || user.subscription.length === 0) {
         return null;
     }