fix: remove blockWeightsStore (#891)

* fix: update polkadot-js api, and apps-config

* fix(tests): remove createApiAugmentation for getWeights test

* fix: remove metadata-consts, and adjust chains-config files

* refactor controller and services using blockWeightStore

* remove the test regarding blockWeightStore

* remove blockWeightStore from chain fee guide

* fix: inline docs

* fix: cleanup unused types and docs

* small grumble