web: add mark read button on search result page

web/index.html

@@ -76,6 +76,16 @@
       white-space: nowrap;
     }
 
+    .index .subject:hover .mark-read-button {
+      display: inline-flex;
+    }
+
+    .index .subject .mark-read-button {
+      display: none;
+      font-size: .6rem;
+      float: right;
+    }
+
     .index .date {
       width: 10em;
       white-space: nowrap;

web/src/view/mod.rs

@@ -137,6 +137,16 @@ fn view_search_results(
                         At::Href => urls::thread(&tid)
                     },
                     &r.subject,
+                    button![
+                        C!["mark-read-button", "button", "is-dark", "is-small"],
+                        "Read",
+                        ev(Ev::Click, move |e| {
+                            info!("click happens");
+                            e.stop_propagation();
+                            e.prevent_default();
+                            Msg::SetUnread(format!("thread:{tid}"), false)
+                        }),
+                    ]
                 ]
             ],
             td![C!["date"], datetime]