refactor(_layout): City-Regex-Prüfung ignorieren, wenn IS_MOBILE_DEVICE

- IS_MOBILE_DEVICE als globalen konstanten Wert hinzugefügt
 - DEVICE_TYPE geändert in DEVICE_SCREEN_TYPE
 - IS_DESKTOP zu IS_DESKTOP_SIZE geändert

EnvelopeGenerator.Web/wwwroot/js/annotation.js

@@ -102,8 +102,8 @@
         const formFieldCity = new PSPDFKit.FormFields.TextFormField({
             name: id_city,
             annotationIds: PSPDFKit.Immutable.List([annotation_city.id]),
-            value: isMobile() ? location.city : "",
-            readOnly: isMobile()
+            value: IS_MOBILE_DEVICE ? location.city : "",
+            readOnly: IS_MOBILE_DEVICE
         })
 
         this.markFieldAsRequired(formFieldCity);