removed custom migration logic, integrated sqlx native migrations, and reorganized migration files for clarity and maintainability

backend-rust/src/main.rs

@@ -1,11 +1,10 @@
 use std::path::Path;
 
 mod db;
-mod migrations;
 
 #[tokio::main]
 async fn main() {
-    let migrations_folder = String::from("src/migrations");
+    let migrations_folder = String::from("./migrations");
 
     let db_path = Path::new("owlynews.sqlite3");
     let migrations_path = Path::new(&migrations_folder);