Inner query in JSON format fully reworked. The interface was reworked to use entity attributes as part of query logic. Handle inner logic and types fully reworked for better type-checking and future-proofing. Includes logic in query building, parsing, and execution.
Logic pills can be created from the handle drop and from the side panel.

Solves #42 and #53

Added a main webpage to web/app with a navbar to control login/logout and add/select/remove a database to be queried. Restructured the main dashboard to use tailwindcss. Ported the websockets and broker implementation to V1 and tied all components (schema, querybuilder, and visualizer) together.

Solves #21