feat: set prefer_server_ciphers to on by default
feat: set prefer_server_ciphers to on by default

[ci skip]
claytonbrown/dokku,alexquick/dokku,dokku/dokku,dokku/dokku,fruitl00p/dokku,alexquick/dokku,claytonbrown/dokku,progrium/dokku,progrium/dokku,fruitl00p/dokku,claytonbrown/dokku,elia/dokku,dokku/dokku,progrium/dokku,alexquick/dokku,fruitl00p/dokku,claytonbrown/dokku,jimjag/dokku,claytonbrown/dokku,jimjag/dokku,jimjag/dokku,alexquick/dokku,elia/dokku,fruitl00p/dokku,jimjag/dokku,jimjag/dokku,alexquick/dokku,elia/dokku,elia/dokku,elia/dokku,progrium/dokku,dokku/dokku,alexquick/dokku,progrium/dokku,jimjag/dokku,jimjag/dokku,dokku/dokku,elia/dokku,elia/dokku,claytonbrown/dokku,progrium/dokku,jimjag/dokku,fruitl00p/dokku,alexquick/dokku,fruitl00p/dokku,fruitl00p/dokku,dokku/dokku,fruitl00p/dokku,alexquick/dokku,elia/dokku,dokku/dokku,claytonbrown/dokku,progrium/dokku,dokku/dokku,claytonbrown/dokku,progrium/dokku