Rename "#" column to "Tier" in the tracker list

src/gui/properties/trackerlistwidget.cpp

@@ -582,7 +582,7 @@ void TrackerListWidget::saveSettings() const
 QStringList TrackerListWidget::headerLabels()
 {
     static const QStringList header {
-        "#"
+          tr("Tier")
         , tr("URL")
         , tr("Status")
         , tr("Peers")

src/webui/www/private/scripts/dynamicTable.js

@@ -1572,7 +1572,7 @@ var TorrentTrackersTable = new Class({
     Extends: DynamicTable,
 
     initColumns: function() {
-        this.newColumn('tier', '', 'QBT_TR(#)QBT_TR[CONTEXT=TrackerListWidget]', 35, true);
+        this.newColumn('tier', '', 'QBT_TR(Tier)QBT_TR[CONTEXT=TrackerListWidget]', 35, true);
         this.newColumn('url', '', 'QBT_TR(URL)QBT_TR[CONTEXT=TrackerListWidget]', 250, true);
         this.newColumn('status', '', 'QBT_TR(Status)QBT_TR[CONTEXT=TrackerListWidget]', 125, true);
         this.newColumn('peers', '', 'QBT_TR(Peers)QBT_TR[CONTEXT=TrackerListWidget]', 75, true);