Replace <term><command><arg> with <term><property><parameter> to describe

options in the config file because:
 * <arg> can only be used within <cmdsynopsis>.
 * <cmdsynopsis> does not allow text outside <command> and <arg>.
 * <arg> does not allow decorating elements like <literal> or <emphasis>.
This fixes #2803057.

Add shortcut entities for commonly used parameters (yes/no, size).
Remove Debian patch which is obsoleted by above changes.

docs/lcdproc-user/configuration.docbook

@@ -228,11 +228,7 @@ settings for the LCDproc server <application>LCDd</application>.
 
 <varlistentry>
   <term>
-    <property>ReportToSyslog</property> =
-    {
-      <emphasis><parameter><literal>no</literal></parameter></emphasis> |
-      <parameter><literal>yes</literal></parameter>
-    }
+    <property>ReportToSyslog</property> = &parameters.yesnodef;
   </term>
   <listitem>
     <para>
@@ -276,11 +272,7 @@ settings for the LCDproc server <application>LCDd</application>.
 
 <varlistentry>
   <term>
-    <property>Foreground</property> =
-    {
-      <emphasis><parameter><literal>no</literal></parameter></emphasis> |
-      <parameter><literal>yes</literal></parameter>
-    }
+    <property>Foreground</property> = &parameters.yesnodef;
   </term>
   <listitem>
     <para>