SL: Fix default name.

src/Model/SedimentLayer/SedimentLayer.py

@@ -38,7 +38,7 @@ class Layer(SQLSubModel):
     @property
     def name(self):
         if self._name == "":
-            return f"SL{self.id + 1}"
+            return f"Layer{self.id + 1}"
 
         return self._name
 
@@ -207,6 +207,9 @@ class SedimentLayer(SQLSubModel):
 
     @property
     def name(self):
+        if self._name == "":
+            return f"SL{self.id + 1}"
+
         return self._name
 
     @name.setter