fix: remove loader reset from finally block in set-model handler (#47)

The .finally() block was resetting setIsLoading(false) after both
success and error paths. On success, this interfered with the loading
state needed by runTransformation. The catch block already handles
the error path loader reset.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: abhizipstack

frontend/src/ide/editor/no-code-model/no-code-model.jsx

@@ -746,9 +746,6 @@ function NoCodeModel({ nodeData }) {
         notify({ error });
         setIsLoading(false);
         handleModalClose();
-      })
-      .finally(() => {
-        setIsLoading(false);
       });
   };