fix: broken HTML (#1446)

* chore: refresh css files with sass 1.26.10

* fix: css selector for toolbar-separator

* chore: fix duplicate html ids in mac client faq

* fix: duplicate ID 'pagetitle' tags in Mac help

* fix: duplicate ID 'taskbox' tags in Mac help

* chore: fix mismatched div

macosx/TransmissionHelp/html/tracker.html

@@ -15,22 +15,22 @@
 				<a class="leftborder" href="../html/index2.html">Index</a></div>
 				</div>
 			</div>
-			<div id="pagetitle">
+			<div class="pagetitle">
 				<h1>Can I add and remove trackers in my torrents? </h1>
 			</div>
 				<p>Yes. To add trackers to a currently running torrent, go to Inspector -> Tracker, and click the plus button (+). To remove them, click minus button (-). Multiple trackers can also be added to torrent files you create. Each newly-added tracker will be placed in a new tier.
 				<p>
-			<div id="pagetitle">
+			<div class="pagetitle">
 				<h1>What is 'Tier 1', 'Tier 2', etc? </h1>
 			</div>
 				<p>Transmission supports multitracker torrents. All of a given torrent's trackers are divided into 'Tiers'. A tracker from each tier will be contacted simultaneously. Transmission randomly chooses a tracker from each tier until it finds one that works.
 				<p>
-			<div id="pagetitle">
+			<div class="pagetitle">
 				<h1>What does 'announce' mean? </h1>
 			</div>
 				<p>When Transmission <i>announces</i>, it is updating its presence to the tracker and asking for more peers. This happens periodically, at the discretion of the tracker, however can be manually invoked via Transfers menu >> Update Tracker.
 				<p>
-			<div id="pagetitle">
+			<div class="pagetitle">
 				<h1>What does 'scrape' mean? </h1>
 			</div>
 				<p><i>Scraping</i> the tracker simply means asking for information about the swarm itself. For example, the number of peers, seeds etc.