refactor(db-config): Use typeorm-style options

TypeORM does not use a separate config option for the path
to the SQLite file.
Additionally, the "dialect" is called "type."

This commit adjusts our config to follow the upstream convention
to reduce confusion.

Signed-off-by: David Mehren <git@herrmehren.de>

test/app.e2e-spec.ts

@@ -33,8 +33,8 @@ describe('App', () => {
       })
       .overrideProvider(getConfigToken('databaseConfig'))
       .useValue({
-        storage: ':memory:',
-        dialect: 'sqlite',
+        database: ':memory:',
+        type: 'sqlite',
       })
       .overrideProvider(getConfigToken('authConfig'))
       .useValue({