Use fontawesome for paste button

app/helpers/additionals_clipboardjs_helper.rb

@@ -12,9 +12,10 @@ module AdditionalsClipboardjsHelper
 
     data['clipboard-text'] = clipboard_text_from_button if clipboard_text_from_button.present?
 
-    content_tag(:span, image_tag('paste.png', plugin: 'additionals'),
+    content_tag(:button, nil,
                 id: "zc_#{target}",
-                class: 'clipboard_button',
+                class: 'clipboard_button far fa-copy',
+                type: 'button',
                 title: l(:label_copy_to_clipboard),
                 data: data)
   end

assets/stylesheets/additionals.css

@@ -171,6 +171,12 @@ div.clear-both { clear: both; }
   text-align: left;
 }
 
+.clipboard_button {
+  padding: 0 2px 0 0;
+  text-align: center;
+  float: left;
+}
+
 /* TAGs */
 
 ul.tags {

assets/stylesheets/clipboard.css

@@ -1,22 +0,0 @@
-/*
-ClipboardJS
-*/
-
-.clipboard_button {
-  display: block;
-  float: left;
-  position: relative;
-  padding: 0;
-  text-align: center;
-  border-color: #bbb;
-  border-style: solid;
-  border-width: 1px;
-  width: 24px;
-  height: 23px;
-}
-
-.clipboard_button img {
-  padding-top: 4px;
-  padding-left: 5px;
-  display: block;
-}

lib/additionals/helpers.rb

@@ -246,8 +246,7 @@ module Additionals
     end
 
     def additionals_load_clipboardjs
-      additionals_include_css('clipboard') +
-        additionals_include_js('clipboard.min')
+      additionals_include_js('clipboard.min')
     end
 
     def additionals_load_observe_field