Change ctrl/command up/down to alt/option up/down to align with other apps

client/js/keybinds.js

@@ -37,8 +37,8 @@ Mousetrap.bind([
 });
 
 Mousetrap.bind([
-	"mod+up",
-	"mod+down",
+	"alt+up",
+	"alt+down",
 ], function(e, keys) {
 	const channels = sidebar.find(".chan");
 	const index = channels.index(channels.filter(".active"));

client/views/windows/help.tpl

@@ -49,7 +49,7 @@
 
 	<div class="help-item">
 		<div class="subject">
-			<kbd class="key-all">Ctrl</kbd><kbd class="key-apple">⌘</kbd> + <kbd>↑</kbd> / <kbd>↓</kbd>
+			<kbd class="key-all">Alt</kbd><kbd class="key-apple">⌥</kbd> + <kbd>↑</kbd> / <kbd>↓</kbd>
 		</div>
 		<div class="description">
 			<p>Switch to the previous/next window in the channel list.</p>