Remove “No emoji found” hover [Close #59]

css/emoji-mart.css

@@ -104,6 +104,9 @@
   background-color: #f4f4f4;
   border-radius: 100%;
 }
+.emoji-mart-no-results .emoji-mart-emoji:hover:before {
+  content: none;
+}
 
 .emoji-mart-category-label {
   z-index: 2;

src/components/category.js

@@ -137,6 +137,9 @@ export default class Category extends React.Component {
             {...emojiProps}
             size={22}
             emoji='sleuth_or_spy'
+            onOver={null}
+            onLeave={null}
+            onClick={null}
           />
 
           <span className='emoji-mart-no-results-label'>

src/components/emoji.js

@@ -40,6 +40,7 @@ export default class Emoji extends React.Component {
   }
 
   handleClick(e) {
+    if (!this.props.onClick) { return }
     var { onClick } = this.props,
         emoji = this.getSanitizedData()
 
@@ -47,6 +48,7 @@ export default class Emoji extends React.Component {
   }
 
   handleOver(e) {
+    if (!this.props.onOver) { return }
     var { onOver } = this.props,
         emoji = this.getSanitizedData()
 
@@ -54,6 +56,7 @@ export default class Emoji extends React.Component {
   }
 
   handleLeave(e) {
+    if (!this.props.onLeave) { return }
     var { onLeave } = this.props,
         emoji = this.getSanitizedData()