make drizzle toPowerSyncTable support mode

[ImSingee]

Drizzle schema supports some "mode," which behaves like a type in the JavaScript world and persists data as other types in SQLite.

For example, when using text({mode: 'json'}), in JavaScript it's JSON, but it stores data as text in SQLite.

[changeset-bot]

🦋 Changeset detected

Latest commit: 611ad85

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@powersync/drizzle-driver	Minor

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[ImSingee]

Another change in this PR: I change the code to use drrizle's [entityKind] instead of js class's .name

Reason: The JS class name is normally changed by the bundler in the production environment, this will make the code works in development mode but not in production mode