Added 'retry' option to the install.func internet check

The function still allows the user to continue without internet or to abort the install, but this change adds a third option: retry internet connection. Before this change, I often ran into situations where I could quickly remedy my internet issue (eg firewall config on router) but then I would need to run the lxc install script again from the beginning.

misc/install.func

@@ -112,22 +112,51 @@ setting_up_container() {
 network_check() {
   set +e
   trap - ERR
-  if ping -c 1 -W 1 1.1.1.1 &>/dev/null; then msg_ok "Internet Connected"; else
+
+  while true; do
+    if ping -c 1 -W 1 1.1.1.1 &>/dev/null; then
+      msg_ok "Internet Connected"
+      break
+    else
       msg_error "Internet NOT Connected"
-    read -r -p "Would you like to continue anyway? <y/N> " prompt
-    if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
+      echo "Choose an option:"
+      echo "1) Continue without internet"
+      echo "2) Retest for internet connection"
+      echo "3) Abort"
+      read -r -p "Enter your choice (1/2/3): " choice
+
+      case $choice in
+        1)
           echo -e " ⚠️  ${RD}Expect Issues Without Internet${CL}"
-    else
+          break
+          ;;
+        2)
+          echo "Retesting internet connection..."
+          continue
+          ;;
+        3)
           echo -e " 🖧  Check Network Settings"
           exit 1
+          ;;
+        *)
+          echo "Invalid option. Please enter 1, 2, or 3."
+          ;;
+      esac
     fi
-  fi
+  done
+
   RESOLVEDIP=$(getent hosts github.com | awk '{ print $1 }')
-  if [[ -z "$RESOLVEDIP" ]]; then msg_error "DNS Lookup Failure"; else msg_ok "DNS Resolved github.com to ${BL}$RESOLVEDIP${CL}"; fi
+  if [[ -z "$RESOLVEDIP" ]]; then
+    msg_error "DNS Lookup Failure"
+  else
+    msg_ok "DNS Resolved github.com to ${BL}$RESOLVEDIP${CL}"
+  fi
+
   set -e
   trap 'error_handler $LINENO "$BASH_COMMAND"' ERR
 }
 
+
 # This function updates the Container OS by running apt-get update and upgrade
 update_os() {
   msg_info "Updating Container OS"