db: these changes should make the "db locked" error less likely

relying more on the underlying storage to keep everything safe

src/common/database.rs

@@ -7,10 +7,12 @@ use serenity::{
   },
   prelude::TypeMapKey,
 };
+use sqlx::sqlite::SqliteJournalMode;
 use sqlx::{
   sqlite::{SqliteConnectOptions, SqlitePoolOptions, SqliteRow},
   Error, FromRow, Pool, Row, Sqlite,
 };
+use std::time::Duration;
 use std::{str::FromStr, sync::Arc};
 
 pub struct DataBase;
@@ -226,7 +228,9 @@ pub async fn db_init(config: &Config) -> Result<Pool<Sqlite>, Error> {
     .connect_with(
       SqliteConnectOptions::from_str(&format!("sqlite://{database}"))?
         .foreign_keys(true)
-        .create_if_missing(true),
+        .create_if_missing(true)
+        .journal_mode(SqliteJournalMode::Wal)
+        .busy_timeout(Duration::from_secs(10)),
     )
     .await?;