Refactor character counter to match upstream

app/javascript/flavours/glitch/features/compose/components/publisher.js

@@ -9,6 +9,7 @@ import ImmutablePureComponent from 'react-immutable-pure-component';
 //  Components.
 import Button from 'flavours/glitch/components/button';
 import Icon from 'flavours/glitch/components/icon';
+import CharacterCounter from './character_counter';
 
 //  Utils.
 import { maxChars } from 'flavours/glitch/util/initial_state';
@@ -49,7 +50,7 @@ class Publisher extends ImmutablePureComponent {
 
     return (
       <div className={computedClass}>
-        <span className='count'>{diff}</span>
+        <CharacterCounter text={countText} max={maxChars} />
         {sideArm && sideArm !== 'none' ? (
           <Button
             className='side_arm'