NTP Sync, LightDM, Wine & Rescue Updates

-  System Time (NTP)*: Overhauled `modules/utils.sh`. `check_system_time()` now warns if year < 2025 and enables NTP silently if off but valid. `sync_system_time()` conditionally installs/starts `systemd-timesyncd` and verifies synchronization via `timedatectl NTPSynchronized`.
- LightDM Configuration: Added `_configure_lightdm()` to ensure the user list is visible in the greeter. Installs `lightdm-gtk-greeter-settings` and creates an override config (`99-show-users.conf`) during startup without interrupting the flow.
- Wine Installation: Simplified Wine setup in `system.sh` and Bullseye `extras.sh`. Removed i386 multiarch logic; now installs only `wine64 fonts-wine`. Added post-install version verification to confirm successful deployment.
- Lutris Dependencies: Updated `install_lutris()` in `tools.sh` and `legacy.sh`. Now conditionally adds `wine32` only if the system supports i386 architectures, preventing dependency failures on 64-bit-only setups.
- Boot Rescue Module: Created new standalone `modules/rescue.sh`. Provides UEFI boot repair tools: Secure Boot refirm (shim + GRUB) and Initramfs regeneration for all kernels. Integrated into the main menu as a dedicated rescue section.
- update docs

modules/extras/java.sh

@@ -17,9 +17,9 @@ install_minecraft_java() {
     local choices
     choices=$(whiptail --title "Java Runtimes for Minecraft" --checklist \
         "Select Java version(s) to install:" 14 65 3 \
-        "8"  "Java 8  — Classic mods & Minecraft <= 1.16.5" ON \
+        "8"  "Java 8  — Classic mods & Minecraft <= 1.16.5" OFF \
         "17" "Java 17 — Minecraft 1.17 to 1.20.4" ON \
-        "21" "Java 21 — Modern Minecraft >= 1.20.5 & 1.21+" ON \
+        "21" "Java 21 — Modern Minecraft >= 1.20.5 & 1.21+" OFF \
         3>&1 1>&2 2>&3)
     [ -z "$choices" ] && { echo "No Java version selected."; return; }
     _enable_temurin_repo