Stop using non-standard search event evolution dashboard (#441)

The next version of Safari removes the non-standard search event.
This causes the search field on the evolution dashboard to stop working.
The issue can be reproduced in Safari Technology Preview and Firefox.

This fix makes two changes:
- Uses the standard 'input' event instead of 'search' event
- Removes the non-standard 'incremental' attribute

The input event triggers the event listener on each change of input.

The behavior with this fix is unchanged to the behavior in the current Safari version.

Tested on macOS 14.1 in Safari, Chrome, Firefox, and
Safari Technology Preview.

Fixes #440

Author: dempseyatgithub

assets/javascripts/swift-evolution.js

@@ -580,7 +580,7 @@ function addEventListeners() {
   var searchInput = document.querySelector('#search-filter')
 
   // Typing in the search field causes the filter to be reapplied.
-  searchInput.addEventListener('search', filterProposals)
+  searchInput.addEventListener('input', filterProposals)
 
   // Each of the individual statuses needs to trigger filtering as well
   ;[].forEach.call(document.querySelectorAll('.filter-list input'), function (element) {

swift-evolution/_dashboard.html

@@ -1,6 +1,6 @@
 <section class="evolution-dashboard">
   <div class="search-bar">
-    <input id="search-filter" class="filter" title="Search proposals" placeholder="Search" type="search" incremental />
+    <input id="search-filter" class="filter" title="Search proposals" placeholder="Search" type="search" />
 
     <div class="filter-container">
       <span role="button" id="status-filter-button" class="filter-button" aria-label="Toggle status filtering options" aria-pressed="false" tabindex="0" title="Toggle proposal status filter">