Populate password for backups after it is initially entered

src/freedombone-installer

@@ -1112,6 +1112,9 @@ function backup_and_restore {
               echo 'if [ -f /tmp/backup_password.txt ]; then';
               echo "    backup_password=\$(cat /tmp/backup_password.txt)";
               echo '    mv /tmp/backup_password.txt /root/simple_backup_password.txt';
+              echo "    sed -i \"s|\\\"backup_password\\\"></p>|\\\"backup_password\\\">\$backup_password</p>|g\" $webadmin_install_dir/backup_password.html";
+              echo "    sed -i \"s|\\\"backup_password_confirm\\\"></p>|\\\"backup_password_confirm\\\">\$backup_password</p>|g\" $webadmin_install_dir/backup_password.html";
+              echo "    chown www-data:www-data $webadmin_install_dir/backup_password.html";
               echo 'else';
               echo '    if [ -f /root/simple_backup_password.txt ]; then';
               echo "        backup_password=\$(cat /root/simple_backup_password.txt)";