Cleanup, fix missing/wrong dialogs, allow mounting old /home without overwriting

src/archlabs-installer

@@ -12,7 +12,7 @@
 # immutable variables {
 
 readonly DIST="ArchLabs"                      # Linux distributor
-readonly VER="1.6.74"                         # Installer version
+readonly VER="1.6.75"                         # Installer version
 readonly LIVE="liveuser"                      # Live session user
 readonly MNT="/mnt/install"                   # Install mountpoint
 readonly ERR="/tmp/errlog"                    # Built-in error log
@@ -345,7 +345,7 @@ window_manager() {
 extra_packages() {
     local pkgs
     pkgs="$(dialog --cr-wrap --stdout --backtitle "$BT" \
-        --title " $_WMChoice " --checklist "$_WMChoiceBody\n" 0 0 30 \
+        --title " $_ExtraPackages " --checklist "$_ExtraPackagesBody\n" 0 0 30 \
         "firefox" "A popular open-source graphical web browser from Mozilla" off \
         "chromium" "an open-source graphical web browser based on the Blink rendering engine" off \
         "opera" "Fast and secure, free of charge web browser from Opera Software" off \