Allowing manufacturer urls to be null

app/web/admin.py

@@ -728,7 +728,7 @@ async def create_manufacturer(
     created = await manufacturer_crud.create(
         db,
         name=name,
-        url=url,
+        url=url.strip() or None,
         logo_url=logo_url.strip() or None,
     )
     await audit_crud.log(
@@ -789,7 +789,11 @@ async def update_manufacturer(
     m = await manufacturer_crud.get(db, manufacturer_id)
     if m is None:
         raise HTTPException(status_code=404, detail="Manufacturer not found")
-    changes = {"name": name, "url": url, "logo_url": logo_url.strip() or None}
+    changes = {
+        "name": name,
+        "url": url.strip() or None,
+        "logo_url": logo_url.strip() or None,
+    }
     await manufacturer_crud.update(db, m, changes)
     await audit_crud.log(
         db,