web: add select all/partial/none for search table

web/src/state.rs

@@ -277,6 +277,24 @@ pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
         Msg::ShowThreadResult(bad) => {
             error!("show_thread_query error: {bad:#?}");
         }
+        Msg::SelectionSetNone => {
+            if let Context::SearchResult {
+                selected_threads, ..
+            } = &mut model.context
+            {
+                *selected_threads = HashSet::new();
+            }
+        }
+        Msg::SelectionSetAll => {
+            if let Context::SearchResult {
+                results,
+                selected_threads,
+                ..
+            } = &mut model.context
+            {
+                *selected_threads = results.iter().map(|node| node.thread.clone()).collect();
+            }
+        }
         Msg::SelectionMarkAsRead => {
             if let Context::SearchResult {
                 selected_threads, ..
@@ -423,6 +441,8 @@ pub enum Msg {
         Result<graphql_client::Response<graphql::show_thread_query::ResponseData>, gloo_net::Error>,
     ),
 
+    SelectionSetNone,
+    SelectionSetAll,
     SelectionMarkAsRead,
     SelectionMarkAsUnread,
     SelectionAddThread(String),