Move this view to tools/ to avoid having a decidated folder for just one file...

src/js/yunohost/controllers/tools.js

@@ -47,7 +47,7 @@
     // System update & upgrade
     app.get('#/update', function (c) {
         c.api('PUT', '/update', {}, function(data) {
-            c.view('update/update', data, function() {
+            c.view('tools/tools_update', data, function() {
                 // Configure buttons behaviors
                 $("button[data-upgrade]").on("click", function() {