src: use fa-fw to align icons for #562

While there, move some stray menu items to their respective module
menu and minimise the padding of the menu to reclaim the space added
by the fixed-width icon behaviour.

Looking good!  :)

Suggested by: @8191

src/opnsense/mvc/app/models/OPNsense/CaptivePortal/Menu/Menu.xml

 <menu>
-    <!-- Plugin Captiveportal menu -->
-    <Services order="4" cssClass="glyphicon glyphicon-cog">
-        <CaptivePortal VisibleName="Captive Portal" cssClass="fa fa-paper-plane-o">
-            <Administration order="1"  url="/ui/captiveportal/"/>
-            <Sessions order="2"  url="/ui/captiveportal/session/"/>
-            <Vouchers order="10" url="/ui/captiveportal/voucher/"/>
-            <Log order="99"  VisibleName="Log File" url="/diag_logs_auth.php"/>
+    <Services>
+        <CaptivePortal VisibleName="Captive Portal" cssClass="fa fa-paper-plane-o fa-fw">
+            <Administration order="10" url="/ui/captiveportal/"/>
+            <Sessions order="20" url="/ui/captiveportal/session/"/>
+            <Vouchers order="30" url="/ui/captiveportal/voucher/"/>
+            <Log order="40" VisibleName="Log File" url="/diag_logs_auth.php"/>
         </CaptivePortal>
     </Services>
 </menu>

src/opnsense/mvc/app/models/OPNsense/Diagnostics/Menu/Menu.xml

 <menu>
     <System>
-        <Health order="0" url="/ui/diagnostics/systemhealth/" cssClass="fa fa-heartbeat"/>
+        <Health order="0" url="/ui/diagnostics/systemhealth/" cssClass="fa fa-heartbeat fa-fw"/>
         <Diagnostics>
             <Activity order="10" VisibleName="Activity Monitor" url="/ui/diagnostics/activity/"/>
         </Diagnostics>

src/opnsense/mvc/app/models/OPNsense/IDS/Menu/Menu.xml

 <menu>
-    <!-- Plugin IDS menu -->
-    <Services order="4" cssClass="glyphicon glyphicon-cog">
-        <IDS VisibleName="Intrusion Detection" url="/ui/ids/" cssClass="fa fa-shield"/>
+    <Services>
+        <IDS VisibleName="Intrusion Detection" url="/ui/ids/" cssClass="fa fa-shield fa-fw"/>
     </Services>
 </menu>

src/opnsense/mvc/app/models/OPNsense/Proxy/Menu/Menu.xml

 <menu>
     <Services>
-      <Proxy VisibleName="Proxy Server" cssClass="fa fa-bolt">
-          <Administration url="/ui/proxy/"/>
+      <Proxy VisibleName="Proxy Server" cssClass="fa fa-bolt fa-fw">
+          <Administration order="10" url="/ui/proxy/"/>
+            <Log VisibleName="Log File" order="20" url="/diag_logs_proxy.php?type=cache">
+                <More url="/diag_logs_proxy.php*"/>
+            </Log>
       </Proxy>
     </Services>
 </menu>

src/opnsense/mvc/app/models/OPNsense/TrafficShaper/Menu/Menu.xml

 <menu>
     <Firewall>
-        <TrafficShaper order="40" VisibleName="Traffic Shaper" cssClass="fa fa-filter">
-            <Settings url="/ui/trafficshaper/"/>
+        <TrafficShaper order="40" VisibleName="Traffic Shaper" cssClass="fa fa-filter fa-fw">
+            <Settings order="10" url="/ui/trafficshaper/"/>
+            <Status order="20" url="/diag_limiter_info.php"/>
         </TrafficShaper>
     </Firewall>
 </menu>

src/opnsense/www/themes/opnsense/assets/stylesheets/bootstrap/_list-group.scss

@@ -21,7 +21,7 @@
 .list-group-item {
   position: relative;
   display: block;
-  padding: 6px 20px;
+  padding: 6px 8px;
   // Place the border on the list items and negative margin up for better styling
   margin-bottom: -1px;
   background-color: $list-group-bg;

src/opnsense/www/themes/opnsense/build/css/main.css

@@ -4307,7 +4307,7 @@ a.thumbnail.active {
 .list-group-item {
   position: relative;
   display: block;
-  padding: 6px 20px;
+  padding: 6px 8px;
   margin-bottom: -1px;
   background-color: #fff; }
   .list-group-item:last-child {