feat: database GUI to create connections

[mscolnick]

Schema-driven UI for creating databases. On create, these will be added as a cell in the top. Will also let user's pick their ORM/query-engine of choice.

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[Light2Dark]

nicee!

I don't think this will work with snowflake just yet. Snowflake is quite finnicky. This is how I set it up

pip install snowflake-sqlalchemy

from snowflake.sqlalchemy import URL
import sqlalchemy as sa

engine = sa.create_engine(
    URL(
        account="JJIYDVS-WP83405",
        password="#####",
        user="SHAHMIR",
        database="SNOWFLAKE_SAMPLE_DATA",
        # warehouse="COMPUTE_WH",
        role="ACCOUNTADMIN",
    )
    # "snowflake://{username}:{password}@{account_identifier}/{database}/{schema}?warehouse={warehouse}&role={rolename}"
)

this is more for future improvement, the PR is fine:

• maybe we could make the 'add database' more visible, maybe just put it at the bottom as if it were empty panel?
• make sqlalchemy the preferred / first selected option (less deps)

[mscolnick]

@Light2Dark, thanks for the snippets.

and i like your suggestions, ill incorporate them in this PR.

EDIT: im actually going to leave the second suggestion making the plus button more visible, for now. we can improve it, but 1) touches some of your existing code and 2) i don't think it will be used all that often. its more prominent in the zero state.

[github-actions]

🚀 Development release published. You may be able to view the changes at https://marimo.app?v=0.11.3-dev3