Make library-rows a guint

data/hu.kramo.Cartridges.gschema.xml.in

@@ -116,7 +116,7 @@
     <key name="sgdb-animated" type="b">
       <default>false</default>
     </key>
-    <key name="library-rows" type="i">
+    <key name="library-rows" type="u">
       <default>0</default>
     </key>
   </schema>

src/window.py

@@ -115,7 +115,7 @@ class CartridgesWindow(Adw.ApplicationWindow):
         style_manager.connect("notify::high-contrast", self.set_details_view_opacity)
 
         # Allow for a custom number of rows for the library
-        if shared.schema.get_int("library-rows"):
+        if shared.schema.get_uint("library-rows"):
             shared.schema.bind(
                 "library-rows",
                 self.library,