More template updates

- Add icons to more action buttons

InvenTree/templates/InvenTree/settings/currency.html

@@ -14,7 +14,8 @@
 <h4>{% trans "Currencies" %}</h4>
 
 <div id='currency-buttons'>
-    <button class='btn btn-success' id='new-currency'>{% trans "New Currency" %}</button>
+    <button class='btn btn-success' id='new-currency'>
+        <span class='fas fa-plus-circle'></span> {% trans "New Currency" %}</button>
 </div>
 
 <table class='table table-striped table-condensed' id='currency-table' data-toolbar='#currency-buttons'>

InvenTree/templates/InvenTree/settings/part.html

@@ -24,7 +24,9 @@
 <h4>{% trans "Part Parameter Templates" %}</h4>
 
 <div id='param-buttons'>
-    <button class='btn btn-success' id='new-param'>{% trans "New Parameter" %}</button>
+    <button class='btn btn-success' id='new-param'>
+        <span class='fas fa-plus-circle'></span> {% trans "New Parameter" %}
+    </button>
 </div>
 
 <table class='table table-striped table-condensed' id='param-table' data-toolbar='#param-buttons'>

InvenTree/templates/InvenTree/settings/user.html

@@ -15,8 +15,12 @@
 <div class='container'>
     <h4>{% trans "User Information" %}</h4>
     <div class='btn-group' style='float: right;'>
-        <div class='btn btn-primary' type='button' id='edit-user' title='Edit User Information'>Edit</div>
-        <div class='btn btn-primary' type='button' id='edit-password' title='Change Password'>Set Password</div>
+        <div class='btn btn-primary' type='button' id='edit-user' title='{% trans "Edit User Information" %}'>
+            <span class='fas fa-user-cog'></span> {% trans "Edit" %}
+        </div>
+        <div class='btn btn-primary' type='button' id='edit-password' title='{% trans "Change Password" %}'>
+            <span class='fas fa-key'></span> {% trans "Set Password" %}
+        </div>
     </div>
 
     <table class='table table-striped table-condensed'>