[FIX] base_import: action button 'Import'

Adapt the template according to the refactoring of the parent commit.

addons/base_import/static/src/css/import.css

@@ -68,10 +68,7 @@
 
 /* ----------- INITIAL SETUP ------------ */
 
-.openerp .oe_list_buttons .oe_alternative {
-    visibility: visible;
-}
-.openerp .oe_list_buttons.oe_editing .oe_list_button_import {
+.openerp .oe_list_buttons.oe_editing .o_list_button_import {
     display: none;
 }
 

addons/base_import/static/src/js/import.js

@@ -60,7 +60,7 @@ ListView.include({
         }
         this._super.apply(this, arguments); // Sets this.$buttons
         if(add_button) {
-            this.$buttons.on('click', '.oe_list_button_import', function() {
+            this.$buttons.on('click', '.o_list_button_import', function() {
                 self.do_action({
                     type: 'ir.actions.client',
                     tag: 'import',

addons/base_import/static/src/xml/import.xml

@@ -398,11 +398,10 @@
         <t t-if="error.moreinfo" t-raw="info(error.moreinfo)"/>
     </t>
     <t t-extend="ListView.buttons">
-        <t t-jquery="span.oe_alternative">
-            this.attr('t-if', 'widget.options.import_enabled');
-        </t>
-        <t t-jquery="span.oe_alternative" t-operation="append">
-            <a href="#" class="oe_bold oe_list_button_import">Import</a>
+        <t t-if='widget.options.import_enabled' t-jquery="button.o_list_button_add" t-operation="after">
+            <button type="button" class="btn btn-sm btn-default o_list_button_import">
+                Import
+            </button>
         </t>
     </t>
 </templates>