Minor code review

- Make FA icons non-selectable, because of spurious selection
  on Firefox for Android when merely tapping an icon
- Disable spellchecking in the static network filter editor
  in the logger

src/css/fa-icons.css

@@ -7,6 +7,8 @@
     margin: 0;
     padding: 0.1em;
     position: relative;
+    user-select: none;
+    -webkit-user-select: none;
     }
 .fa-icon > * {
     pointer-events: none;

src/logger-ui.html

@@ -104,7 +104,7 @@
                 </div>
                 <div class="container static">
                     <p></p>
-                    <p><textarea class="staticFilter" value=""></textarea>
+                    <p><textarea class="staticFilter" spellcheck="false" value=""></textarea>
                        <button id="createStaticFilter" class="custom important" type="button" data-i18n="pickerCreate"></button>
                    </p>
                 </div>