snooze: add UI elements and DB for snooze functionality

server/src/graphql.rs

@@ -637,6 +637,17 @@ impl MutationRoot {
         wake_time: DateTime<Utc>,
     ) -> Result<bool, Error> {
         info!("TODO snooze {query} until {wake_time})");
+        let pool = ctx.data_unchecked::<PgPool>();
+        sqlx::query!(
+            r#"
+        INSERT INTO snooze (message_id, wake)
+        VALUES ($1, $2)
+    "#,
+            query,
+            wake_time
+        )
+        .execute(pool)
+        .await?;
         Ok(true)
     }
     /// Drop and recreate tantivy index. Warning this is slow