Fixing some code problems

src/data_provider/words.rs

@@ -46,15 +46,9 @@ pub fn add_words(words: &mut [WordData], connection: &mut Connection) {
         }
     }
 
+    let last_index: u32 = tx.last_insert_rowid() as u32;
     tx.commit().unwrap();
 
-    let last_index: u32 = connection
-        .query_one(
-            "SELECT seq from sqlite_sequence WHERE name == ?1",
-            ("words".to_string(),),
-            |row| row.get(0),
-        )
-        .unwrap();
 
     let start_index = last_index - (count as u32) + 1;