Bug 1631430 - Update the restore window control button label from "Restore" to "Restore Down" as used by Windows r=Gijs,fluent-reviewers

Differential Revision: https://phabricator.services.mozilla.com/D71572

browser/base/content/browser.xhtml

@@ -1159,7 +1159,7 @@
                        oncommand="window.minimize();"/>
 
         <toolbarbutton id="restore-button"
-                       data-l10n-id="browser-window-restore-button"
+                       data-l10n-id="browser-window-restore-down-button"
                        oncommand="BrowserFullScreen();"/>
 
         <toolbarbutton id="close-button"

browser/base/content/titlebar-items.inc.xhtml

@@ -14,7 +14,7 @@
                    />
     <toolbarbutton class="titlebar-button titlebar-restore"
                    oncommand="window.restore();"
-                   data-l10n-id="browser-window-restore-button"
+                   data-l10n-id="browser-window-restore-down-button"
                    />
     <toolbarbutton class="titlebar-button titlebar-close"
                    command="cmd_closeWindow"

browser/locales/en-US/browser/browser.ftl

@@ -211,20 +211,20 @@ identity-more-info-link-text =
 ## Window controls
 
 browser-window-minimize-button =
-  .tooltiptext = Minimize
+    .tooltiptext = Minimize
 browser-window-maximize-button =
-  .tooltiptext = Maximize
-browser-window-restore-button =
-  .tooltiptext = Restore
+    .tooltiptext = Maximize
+browser-window-restore-down-button =
+    .tooltiptext = Restore Down
 browser-window-close-button =
-  .tooltiptext = Close
+    .tooltiptext = Close
 
 ## WebRTC Pop-up notifications
 
 popup-select-camera =
-.value = Camera to share:
-.accesskey = C
+    .value = Camera to share:
+    .accesskey = C
 popup-select-microphone =
-.value = Microphone to share:
-.accesskey = M
+    .value = Microphone to share:
+    .accesskey = M
 popup-all-windows-shared = All visible windows on your screen will be shared.