use appropriate label for store switch

"Store view" is a particular scope level and therefore shouldn't be used
as the label for a dropdown which may include multiple scope levels.

Author: scottsb

app/code/Magento/Backend/i18n/en_US.csv

@@ -258,7 +258,7 @@ Minute,Minute
 "To use this website you must first enable JavaScript in your browser.","To use this website you must first enable JavaScript in your browser."
 "This is only a demo store. You can browse and place orders, but nothing will be processed.","This is only a demo store. You can browse and place orders, but nothing will be processed."
 "Report an Issue","Report an Issue"
-"Store View:","Store View:"
+"Scope:","Scope:"
 "Stores Configuration","Stores Configuration"
 "Please confirm scope switching. All data that hasn't been saved will be lost.","Please confirm scope switching. All data that hasn't been saved will be lost."
 "Additional Cache Management","Additional Cache Management"

app/code/Magento/Backend/view/adminhtml/templates/store/switcher.phtml

@@ -9,7 +9,7 @@
 <?php if ($websites = $block->getWebsites()) : ?>
 
 <div class="store-switcher store-view">
-    <span class="store-switcher-label"><?= $block->escapeHtml(__('Store View:')) ?></span>
+    <span class="store-switcher-label"><?= $block->escapeHtml(__('Scope:')) ?></span>
     <div class="actions dropdown closable">
         <input type="hidden" name="store_switcher" id="store_switcher"
                data-role="store-view-id" data-param="<?= $block->escapeHtmlAttr($block->getStoreVarName()) ?>"