Broadcom, Utils & Headless Fixes

- Removed dead Broadcom hardware IDs (4357/4358/4360/4727) from `_is_broadcom_b43`, retaining only valid ID 4352 to eliminate false positives in the case statement.
- Added a guard in `_handle_wireless` Level 3 to verify `linux-headers` availability via `apt-cache policy`. Skips DKMS compilation if headers are missing, preventing transaction failures during installation.
- Implemented Broadcom combo card detection (WiFi + Bluetooth) by scanning `PCI_BT_DEVS`. Automatically writes `/etc/modprobe.d/broadcom-combo.conf` with `softdep wl post: btusb` and warns users about potential reboot requirements.
- Enhanced Level 2 (`firmware-b43-installer`) with post-installation validation for `/lib/firmware/b43`. Provides clear recovery instructions via `sudo dpkg-reconfigure firmware-b43-installer` if the directory is empty or missing after installation.
- Created a new helper `_msg_red()` in `utils.sh` to handle critical error messages with colored Whiptail output, replacing standard alerts for migration warnings and failures.
- Updated `repos/migrate.sh` to use `_msg_red()` for branch migration warnings and failure states, ensuring visibility of critical issues while keeping completion messages informative.
- Verified headless mode guards across 16 separate extras files (`office.sh`, `fetch.sh`, `cursors.sh`, etc.), preventing unnecessary package installations on servers without display environments.
- Completed syntax verification (`bash -n`) across all core and extra modules, ensuring no errors in the updated logic for firmware, gaming, swap, or repository management scripts.
- update readme.md

modules/extras/themes/desktop-themes/desktop-themes.sh

@@ -4,23 +4,29 @@
 _cat_themes() {
     local headless=false
     _is_headless && headless=true
-    local arc_state;        arc_state=$(_state "arc-theme")
-    local blackbird_state;  blackbird_state=$(_state "blackbird-gtk-theme")
-    local bluebird_state;   bluebird_state=$(_state "bluebird-gtk-theme")
-    local breeze_gtk_state; breeze_gtk_state=$(_state "breeze-gtk-theme")
-    local greybird_state;   greybird_state=$(_state "greybird-gtk-theme")
-    local numix_gtk_state;  numix_gtk_state=$(_state "numix-gtk-theme")
-    local orchis_state;     orchis_state=$(_state "orchis-gtk-theme")
+    local -a items=()
+    if ! $headless; then
+        local arc_state;        arc_state=$(_state "arc-theme")
+        local blackbird_state;  blackbird_state=$(_state "blackbird-gtk-theme")
+        local bluebird_state;   bluebird_state=$(_state "bluebird-gtk-theme")
+        local breeze_gtk_state; breeze_gtk_state=$(_state "breeze-gtk-theme")
+        local greybird_state;   greybird_state=$(_state "greybird-gtk-theme")
+        local numix_gtk_state;  numix_gtk_state=$(_state "numix-gtk-theme")
+        local orchis_state;     orchis_state=$(_state "orchis-gtk-theme")
+        items+=(
+            "arc-theme"           "Arc GTK theme$(_inst arc-theme)"                 "$arc_state"
+            "blackbird-gtk-theme" "Blackbird GTK theme$(_inst blackbird-gtk-theme)" "$blackbird_state"
+            "bluebird-gtk-theme"  "Bluebird GTK theme$(_inst bluebird-gtk-theme)"   "$bluebird_state"
+            "breeze-gtk-theme"    "Breeze GTK theme (KDE port)$(_inst breeze-gtk-theme)" "$breeze_gtk_state"
+            "greybird-gtk-theme"  "Greybird GTK theme$(_inst greybird-gtk-theme)"   "$greybird_state"
+            "numix-gtk-theme"     "Numix GTK theme$(_inst numix-gtk-theme)"         "$numix_gtk_state"
+            "orchis-gtk-theme"    "Orchis GTK theme$(_inst orchis-gtk-theme)"       "$orchis_state"
+        )
+    fi
 
     local choices
     choices=$(_checklist "Desktop Themes (GTK/KDE)" "Select desktop themes to install${SCROLL_HINT}:" $TUI_ALTO $TUI_ANCHO $TUI_ALTO_LISTA \
-        "arc-theme"           "Arc GTK theme$(_inst arc-theme)"                 "$arc_state" \
-        "blackbird-gtk-theme" "Blackbird GTK theme$(_inst blackbird-gtk-theme)" "$blackbird_state" \
-        "bluebird-gtk-theme"  "Bluebird GTK theme$(_inst bluebird-gtk-theme)"   "$bluebird_state" \
-        "breeze-gtk-theme"    "Breeze GTK theme (KDE port)$(_inst breeze-gtk-theme)" "$breeze_gtk_state" \
-        "greybird-gtk-theme"  "Greybird GTK theme$(_inst greybird-gtk-theme)"   "$greybird_state" \
-        "numix-gtk-theme"     "Numix GTK theme$(_inst numix-gtk-theme)"         "$numix_gtk_state" \
-        "orchis-gtk-theme"    "Orchis GTK theme$(_inst orchis-gtk-theme)"       "$orchis_state" \
+        "${items[@]}" \
         )
     clear
 
@@ -29,10 +35,6 @@ _cat_themes() {
     local cleaned; cleaned=$(echo "$choices" | tr -d '"')
 
     for pkg in $cleaned; do
-        if $headless; then
-            echo "Skipping $pkg (headless mode)"
-            continue
-        fi
         if ! is_installed "$pkg"; then
             _run_install "$pkg"
         else