feat(postgres,i18n): add pg schema selection and Spanish locale

[kconfesor]

Fixes #15

• Adds PostgreSQL schema aware driver with multi-schema selection UI
• Smart-quote all identifier references with escape_identifier for safety (MacOS)
• Pass schema parameter through all postgres driver queries and commands
• Add SidebarSchemaItem component for per-schema tree rendering
• Add complete Spanish (es) i18n locale with all translation keys
• Register Spanish in i18n config, AppLanguage type, and Settings UI
• Add "spanish" label key to English and Italian locale files
• Fixed mysql 8 empty table names issues (macos)

[debba]

@kconfesor It's very promising, thanks a lot for contribution.

Only some notes before proceeding on merge.

CI (test) is failing

You can check:
All tests (npm run test:all)
Linting (npm run lint)
Build (npm run build)
and check and solve issues

Tests

If it's possible: can you separate logic part from components and adding tests to the test suite

Features

New feature is powerful overall and thanks for spanish translation as well.
I really appreciate Database object count summary panel, can you easily add it also in other drivers (mysql e postgres?
I really like the UI for multiple schema selection.
I have several requests to allow adding a connection without specifying the database, and this UI could also be reused in the future to select multiple databases.
What do you think?

Thanks a lot for your work.
Consider to join on our new Discord server: https://discord.gg/YrZPHAwMSG

[kconfesor]

Hey there, sure i will check the issues, i will also add the summary feature to other drivers, about the schema selector yes we can abstract this one and use it to select databases, that's a great idea.

[debba]

LGTM, very great!
I will do some checks and merge.