Remove extra . in strings for openInEditor command (#5697)

These strings should not have `.` at the end.

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src/vs/workbench/contrib/positronPreview/browser/components/htmlActionBars.tsx

@@ -19,7 +19,7 @@ import { DisposableStore } from 'vs/base/common/lifecycle';
 const reload = localize('positron.preview.html.reload', "Reload the content");
 const clear = localize('positron.preview.html.clear', "Clear the content");
 const openInBrowser = localize('positron.preview.html.openInBrowser', "Open the content in the default browser");
-const openInEditor = localize('positron.preview.html.openInEditor', "Open the content in an editor tab.");
+const openInEditor = localize('positron.preview.html.openInEditor', "Open the content in an editor tab");
 
 /**
  * HtmlActionBarsProps interface.

src/vs/workbench/contrib/positronPreview/browser/components/urlActionBars.tsx

@@ -36,7 +36,7 @@ const reload = localize('positron.preview.reload', "Reload the current URL");
 const clear = localize('positron.preview.clear', "Clear the current URL");
 const openInBrowser = localize('positron.preview.openInBrowser', "Open the current URL in the default browser");
 const currentUrl = localize('positron.preview.currentUrl', "The current URL");
-const openInEditor = localize('positron.preview.html.openInEditor', "Open the content in an editor tab.");
+const openInEditor = localize('positron.preview.html.openInEditor', "Open the content in an editor tab");
 
 /**
  * UrlActionBars component.