Add type alias for Section id

src/model/section.rs

@@ -2,9 +2,11 @@ use crate::section_interface::SecId;
 use rusqlite::{Error as SqlError, Row as SqlRow, ToSql};
 use std::sync::Arc;
 
+pub type SectionId = u32;
+
 #[derive(Debug, Clone)]
 pub struct Section {
-    pub id: u32,
+    pub id: SectionId,
     pub name: String,
     pub interface_id: SecId,
 }