Update Notification API Endpoint Paths for Consistency

- Modified the route for marking notifications as seen to ensure a consistent and clear API structure.
- Updated the notification client to reflect the new endpoint path for marking all notifications as seen, enhancing clarity for API consumers.
- These changes improve the overall usability and maintainability of the notification API.

pkg/notification/client.go

@@ -443,7 +443,7 @@ func (c *Client) AllMarkSeen(ctx context.Context, userID string) (*MarkSeenRespo
 	}
 
 	// Create HTTP request
-	url := fmt.Sprintf("%s/api/v1/notifications/all-seen/%s", c.config.BaseURL, userID)
+	url := fmt.Sprintf("%s/api/v1/notifications/seen-all/%s", c.config.BaseURL, userID)
 	httpReq, err := http.NewRequestWithContext(ctx, "PUT", url, nil)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create HTTP request: %w", err)