Error handling refactor and 500 page/message templates

src/routes/admin/posts.rs

@@ -84,7 +84,7 @@ pub async fn insert_post(
     title: &str,
     content: &str,
     author: &Uuid,
-) -> Result<Uuid, AdminError> {
+) -> Result<Uuid, sqlx::Error> {
     let post_id = Uuid::new_v4();
     let query = sqlx::query!(
         r#"
@@ -97,10 +97,7 @@ pub async fn insert_post(
         content,
         Utc::now()
     );
-    transaction
-        .execute(query)
-        .await
-        .map_err(|e| AdminError::UnexpectedError(e.into()))?;
+    transaction.execute(query).await?;
     Ok(post_id)
 }