feat(misc) OG webpack lowercase

Author: EugeneHlushko

template.ejs

@@ -7,7 +7,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <meta name="theme-color" content="#2B3A42">
 
-    <meta property="og:site_name" content="Webpack" />
+    <meta property="og:site_name" content="webpack" />
     <meta property="og:type" content="website" />
     <meta property="og:title" content="<%= htmlWebpackPlugin.options.context.title %>" />
     <meta property="og:description" name="description" content="<%= htmlWebpackPlugin.options.context.description %>" />