Change "Zotero" button tooltip to "Open Zotero"

chrome/content/zotero/icon.js

@@ -170,7 +170,7 @@ function getTooltipText(button) {
 	switch (button) {
 	case 'main':
 		if (Zotero && Zotero.initialized) {
-			text = 'Zotero';
+			text = Zotero.getString('general.open', Zotero.clientName);
 			let key = Zotero.Keys.getKeyForCommand('openZotero');
 			if (key) {
 				// Add RLE mark in RTL mode to make shortcut render the right way

chrome/locale/en-US/zotero/zotero.properties

@@ -42,6 +42,7 @@ general.create						= Create
 general.delete						= Delete
 general.moreInformation            = More Information
 general.seeForMoreInformation		= See %S for more information.
+general.open                       = Open %S
 general.enable						= Enable
 general.disable						= Disable
 general.remove						= Remove