Refactor subscription logic to remove unused trial subscription variable

- Eliminated the `usedTrialSubscription` variable from the subscription function.
- Updated the subscription period condition to directly reference `GQL.Enum_Subscriptionprice_Period.Trial` for clarity.

apps/bot/src/bot/conversations/subscription.ts

@@ -22,7 +22,6 @@ export async function subscription(conversation: Conversation<Context, Context>,
     hasActiveSubscription,
     remainingDays,
     subscription: currentSubscription,
-    usedTrialSubscription,
   } = await subscriptionsService.getSubscription({
     telegramId,
   });
@@ -33,7 +32,7 @@ export async function subscription(conversation: Conversation<Context, Context>,
         eq: true,
       },
       period: {
-        ne: usedTrialSubscription ? GQL.Enum_Subscriptionprice_Period.Trial : undefined,
+        ne: GQL.Enum_Subscriptionprice_Period.Trial,
       },
     },
   });