refactor: add ColumnType import and remove unused imports

src/modes/list.rs

@@ -1,8 +1,7 @@
 use crate::Alignment;
 
-use crate::db::{
-    get_item, get_item_last, get_items, get_items_matching, get_item_tags, get_item_meta, Item, Meta, Tag,
-};
+use crate::db::{get_items, get_items_matching};
+use crate::modes::common::ColumnType;
 use crate::modes::common::{size_column, string_column};
 use prettytable::color;
 use prettytable::row;