[Feature Request]: Turso

**Is your feature request related to a problem? Please describe.**
It would be great if Peekaping could support Turso/libsql as a database option, as I believe it would be just importing the libsql bindings no sqlite is supported.

**Describe the solution you'd like**
Add native support for Turso (libsql) as a database backend.

**Describe alternatives you've considered**
Using SQLite.

**Additional context**
N/A

The issue requests adding Turso/libsql support. First, examine the existing database backend implementations in the codebase to understand the abstraction. Look for SQLite integration as a reference. Research the libsql Go bindings and assess how to integrate them into the project's database layer. Determine what changes are needed in configuration, connection handling, and query execution.

Written by the indexing model from the issue text.