Converted to using rusqlite

crates/db/src/migrations.rs

@@ -0,0 +1,10 @@
+use rusqlite_migration::{Migrations, M};
+
+lazy_static::lazy_static! {
+    pub static ref MIGRATIONS: Migrations<'static> = Migrations::new(vec![M::up(
+        "CREATE TABLE kv_store(
+            key TEXT PRIMARY KEY,
+            value TEXT NOT NULL
+        ) STRICT;",
+    )]);
+}