Feature Request: stop before the first " in JSON files

[ghost]

Hey @Jasonlhy !

Thanks for your very interesting extension;
I'm experiencing this issue while editing json files: when i delete "a multiple key" inside this snippet

"Progress Bar": {
        "prefix": [
            "progressBar",
            "a multiple key"
        ],

i get:

"Progress Bar": {
        "prefix": [
            "progressBar",
            "
        ],

So i'll add ", but VSC automatically adds another "

"Progress Bar": {
        "prefix": [
            "progressBar",
            """
        ],

So i have to delete with del the second ", and i finally get:

"Progress Bar": {
        "prefix": [
            "progressBar",
            ""
        ],

Can you do something about it ?
Or am I missing something important ?