Changes to Take screenshot of website

removed the request property base/proxy_enabled

the base/cache request property type changed from boolean to no type

removed the request property base/custom_function

removed the request property base/custom_prompt

removed the request property base/gpt_config/model

removed the request property base/model

removed the request property base/proxy_high_end

removed the request property base/proxy_lightning

removed the request property base/proxy_mobile

removed the request property base/storageless

added the new optional request property base/disable_first_party_javascript

added the new optional request property base/disable_first_party_stylesheets

added the new optional request property base/disable_first_party_visuals

the cache request property default value true was added

added subschema #1 subschema #2 to the base/cache request property oneOf list