Register Input Schema schema at SchemaStore, add permalink to location #401
Description
It would be nice to have the input schema registered at https://www.schemastore.org/json/, so that supporting editors like VSCode can offer autocompletion and validation.
It would also be nice to have a permalink to the input schema schema, which would redirect to the schema's location (currently at https://github.com/apify/apify-shared-js/blob/master/packages/input_schema/src/schema.json), so that we can put it to the input schema's $schema prop, and not worry about where the actual input schema schema file is located.