Modify mbetterclient .bashrc to launch startx instead of MBetterClient directly

- Change .bashrc to exec startx instead of launching MBetterClient directly
- MBetterClient will now be launched by .xinitrc within the X session
- Maintains XKB environment variables for keyboard configuration
- Allows proper X session initialization before launching applications

config/includes.chroot/usr/local/bin/auto-installer.sh

@@ -557,10 +557,10 @@ configure_target_system() {
     chroot "$TARGET_MOUNT" useradd -m -s /bin/bash mbetterclient 2>/dev/null || true
     chroot "$TARGET_MOUNT" passwd -d mbetterclient 2>/dev/null || true  # Remove password
 
-    # Configure mbetterclient user to launch MBetterClient on login
-    print_status "Configuring mbetterclient user to launch MBetterClient..."
+    # Configure mbetterclient user to launch startx on login
+    print_status "Configuring mbetterclient user to launch startx..."
     cat > "$TARGET_MOUNT/home/mbetterclient/.bashrc" << 'EOF'
-# MBetterClient autolaunch configuration
+# X session autolaunch configuration
 if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
     # SSH session - don't autolaunch
     return
@@ -568,8 +568,14 @@ fi
 
 # Check if we're on tty1 (autologin terminal)
 if [ "$(tty)" = "/dev/tty1" ]; then
-    # Launch MBetterClient with web host binding
-    exec /usr/local/bin/MBetterClient --web-host 0.0.0.0
+    # Set XKB environment variables to fix keyboard issues
+    export XKB_DEFAULT_LAYOUT="us"
+    export XKB_DEFAULT_MODEL="pc105"
+    export XKB_DEFAULT_VARIANT=""
+    export XKB_DEFAULT_OPTIONS=""
+
+    # Launch X session (MBetterClient will be started by .xinitrc)
+    exec startx
 fi
 EOF