refactor: Updated the 2018 idiom lint to the 2021_compatibility lint

src/handlers/radarr_handlers/collections/collection_details_handler.rs

@@ -23,7 +23,7 @@ pub(super) struct CollectionDetailsHandler<'a, 'b> {
   _context: Option<ActiveRadarrBlock>,
 }
 
-impl<'a, 'b> CollectionDetailsHandler<'a, 'b> {
+impl CollectionDetailsHandler<'_, '_> {
   handle_table_events!(
     self,
     collection_movies,

src/handlers/radarr_handlers/collections/edit_collection_handler.rs

@@ -20,7 +20,7 @@ pub(super) struct EditCollectionHandler<'a, 'b> {
   context: Option<ActiveRadarrBlock>,
 }
 
-impl<'a, 'b> EditCollectionHandler<'a, 'b> {
+impl EditCollectionHandler<'_, '_> {
   fn build_edit_collection_params(&mut self) -> EditCollectionParams {
     let edit_collection_modal = self
       .app

src/handlers/radarr_handlers/collections/mod.rs

@@ -29,7 +29,7 @@ pub(super) struct CollectionsHandler<'a, 'b> {
   context: Option<ActiveRadarrBlock>,
 }
 
-impl<'a, 'b> CollectionsHandler<'a, 'b> {
+impl CollectionsHandler<'_, '_> {
   handle_table_events!(
     self,
     collections,