No warning/error when opening invalid notebook file

[mjbvz]

Type: Bug

1. Create a issue notebook
2. Edit the raw json of the file an add a trailing , to make the json invalid
3. Open the file again in the notebook editot

bug
The notebook is empty. No errors/warnings are shown

Extension version: 0.0.130
VS Code version: Code - Insiders 1.83.0-insider (Universal) (4268e464763087044d0c1b5bdd37ebbe683cadfa, 2023-09-29T20:44:15.716Z)
OS version: Darwin arm64 23.0.0
Modes:

System Info

Item	Value
CPUs	Apple M2 Max (12 x 24)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	5, 4, 3
Memory (System)	64.00GB (0.50GB free)
Process Argv	--crash-reporter-id 0fffb5da-9cd7-46fd-9e7f-a1564e8c5fda
Screen Reader	no
VM	0%