fix(cli): migration for http plugin ACL

[i-c-b]

tauri migrate creates an array of strings but http plugin expects an array of objects with a key of url and a string value.

[amrbashir]

seems like the better change here would be to change the http plugin scope to take array of url patterns instead of objects, cc @lucasfernog

[lucasfernog]

IIRC I kept the object way of defining scopes because it looked better on TOML files.. if you guys wanna double check it's fine

[amrbashir]

Just checked this and there is a few things to improve:

1. permissions in a capability file using toml need to use [[permissions]] synatx, you can't permissions = ["allow"] Edit: this isn't true, only the generated schema doesn't match this variant
2. the scope in toml will need to be defined as allow = [{ url = "hello" }] which is not very nice

Here is an example of the whole scope file:

"$schema" = "../gen/schemas/desktop-schema.json"
identifier = "run-app-base"
description = "Base permissions to run the app"
windows = ["main"]

[[permissions]]
identifier = "http:default"
allow = [{ url = "hello" }]