[FIX] calendar: dropdown button misaligned

+ add meaningful placeholder

addons/calendar/static/src/css/calendar.css

@@ -81,4 +81,9 @@ span.no-wrap {
 }
 .openerp .oe_add_input_box > div > input{
     width: 200px;
-}
+}
+.openerp .oe_add_input_box > div > .oe_m2o_drop_down_button {
+    position: relative;
+    top: 0px;
+    right: 20px;
+}

addons/calendar/static/src/js/base_calendar.js

@@ -97,7 +97,7 @@ function reload_favorite_list(result) {
                     name: "partner_id",
                     type: "many2one",
                     options: '{"no_open": True}',
-                    placeholder: _t("Select Favorite Calendar"),
+                    placeholder: _t("Add Favorite Calendar"),
                 },
             });
             this.ir_model_m2o.insertAfter($('div.oe_calendar_filter'));