Encryption module control system & session timer improvements

- Added a real verification system for active encryption modules, giving users full control over enabled modules.
- During session purchase or activation, the actual enabled modules are now displayed for both free and paid sessions.
- Refactored session timer initialization for proper functionality and accurate countdown.
- Optimized code structure related to session management and module verification.

src/styles/components.css

@@ -53,6 +53,8 @@
     overflow-y: auto;
     padding: 1rem;
     scroll-behavior: smooth;
+    scroll-padding-bottom: 20px;
+    scroll-margin-bottom: 20px;
 }
 
 /* For mobile devices, take into account the height of the virtual keyboard */
@@ -371,6 +373,15 @@ button i {
     animation: messageSlideIn 0.3s ease-out;
 }
 
+.chat-messages-area .message:last-child {
+    scroll-margin-bottom: 20px;
+}
+
+.chat-messages-area {
+    scroll-behavior: smooth;
+    scroll-padding-bottom: 20px;
+}
+
 /* Animations */
 @keyframes iconPulse {
     0%, 100% { opacity: 0.7; }