schema.graphql

* remove uneless root field udHistory

* remove unused 'of'

* upgrade package.json and package-lock.json deps

* add limit variable to sql request

* also update dockerfile to node 20

* update to node 20

* externalize getSqlFile function to utils

* remove useless return and type keywords

* remove event id when event is already present

* externalize .sql

* apply hugo review

* refactor SQL Query in DuHistoryResolver for Enhanced Membership Period Handling

* remove unused join block table sql

* remove unused deps

* UD history by identity is working

* add UD and reevals data

* add universal dividend in schema

this is a proposal, can be improved

* move identity and smith status below identity