Fixing tag selection

src/data_provider/import.rs

@@ -1,7 +1,7 @@
+use std::collections::BTreeMap;
 use crate::helpers::into_result;
 use crate::notification::NotificationData;
 use crate::notification::NotificationData::IncorrectAnkiFile;
-use hashbrown::HashMap;
 use log::info;
 use rusqlite::Connection;
 use serde_json::Value;
@@ -15,7 +15,7 @@ pub struct ImportGroup {
     pub name: String,
     pub fields: Vec<String>,
     pub length: u64,
-    pub mapping: HashMap<String, String>,
+    pub mapping: BTreeMap<String, String>,
     pub imported: bool,
 }