fix: Render bones which are readOnly=True not as required=True (#…

…1371)

src/viur/core/bones/base.py

@@ -1447,14 +1447,14 @@ def structure(self) -> dict:
         ret = {
             "descr": self.descr,
             "type": self.type,
-            "required": self.required,
+            "required": self.required and not self.readOnly,
             "params": self.params,
             "visible": self.visible,
             "readonly": self.readOnly,
             "unique": self.unique.method.value if self.unique else False,
             "languages": self.languages,
             "emptyvalue": self.getEmptyValue(),
-            "indexed": self.indexed
+            "indexed": self.indexed,
         }
 
         # Provide a defaultvalue, if it's not a function.
@@ -1470,6 +1470,8 @@ def structure(self) -> dict:
             }
         else:
             ret["multiple"] = self.multiple
+
+        # Provide compute information
         if self.compute:
             ret["compute"] = {
                 "method": self.compute.interval.method.name