Add missing shortcut to close overlay via esc key

src/Umbraco.Web.UI.Client/src/views/common/infiniteeditors/blockeditor/blockeditor.html

@@ -37,6 +37,7 @@
 
                     <umb-button
                         action="vm.close()"
+                        shortcut="esc"
                         button-style="link"
                         label="{{vm.closeLabel}}"
                         type="button">

src/Umbraco.Web.UI.Client/src/views/common/infiniteeditors/blockpicker/blockpicker.html

@@ -69,6 +69,7 @@
 
                 <umb-button
                     action="vm.close()"
+                    shortcut="esc"
                     button-style="link"
                     label-key="general_cancel"
                     type="button">

src/Umbraco.Web.UI.Client/src/views/propertyeditors/blocklist/prevalue/blocklist.blockconfiguration.overlay.html

@@ -227,6 +227,7 @@
 
                     <umb-button
                         action="vm.close()"
+                        shortcut="esc"
                         button-style="link"
                         label-key="general_close"
                         type="button">