Make css class name more consistent with our conventions

packages/logconsole-extension/src/index.tsx

@@ -228,7 +228,8 @@ function activateLogConsole(
       logger.clear();
     },
     isEnabled: () => logConsolePanel && logConsolePanel.source !== null,
-    iconClass: 'fa fa-ban clear-icon'
+    // TODO: figure out how this jp-clearIcon class should work, analagous to jp-AddIcon
+    iconClass: 'fa fa-ban jp-ClearIcon'
   });
 
   function toTitleCase(value: string) {

packages/logconsole-extension/style/base.css

@@ -35,7 +35,7 @@
   color: white;
 }
 
-.jp-LogConsole .clear-icon {
+.jp-LogConsole .jp-ClearIcon {
   transform: rotate(90deg);
   margin-top: -1px;
 }