Add hardware information in instance config

...c/app/+about/about-instance/about-instance.component.html

...src/app/+about/about-instance/about-instance.component.ts

...nfig/edit-custom-config/edit-custom-config.component.html

...config/edit-custom-config/edit-custom-config.component.ts

client/src/app/shared/instance/instance.service.ts

config/default.yaml

config/production.yaml.example

server/controllers/api/config.ts

server/initializers/config.ts

server/tests/api/check-params/config.ts

server/tests/api/server/config.ts

shared/extra-utils/server/config.ts

shared/models/server/about.model.ts

shared/models/server/custom-config.model.ts