style: change theme colour

OliverBooth/Pages/Shared/_Layout.cshtml

@@ -11,7 +11,7 @@
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <meta name="color-scheme" content="dark">
-    <meta name="theme-color" content="#121212">
+    <meta name="theme-color" content="#007EC6">
     @if (ViewData["Title"] != null)
     {
         <title>@ViewData["Title"] - Oliver Booth</title>
@@ -30,6 +30,7 @@
         <meta property="og:type" content="article">
         <meta property="og:url" content="@url">
         <meta property="twitter:title" content="@post.Title">
+        <meta property="twitter:creator" content="@post.Author.DisplayName">
         <meta property="twitter:description" content="@excerpt">
         <meta property="twitter:card" content="summary">
         <meta property="twitter:url" content="@url">