Added a shortened commit hash along the version

The commit value is replaced when building the zip file

src/installer/pages/1.php

@@ -117,7 +117,12 @@
 
 <div class="card">
     <div class="card-body">
-        <h4 class="card-title text-center">Welcome to TS-website <?= __TSWEBSITE_VERSION ?> Installer!</h4>
+        <h4 class="card-title text-center mb-0">Welcome to TS-website Installer!</h4>
+
+        <p class="card-text text-center text-muted font-italic mb-5">
+            Version <?= __TSWEBSITE_VERSION ?> (<?= __TSWEBSITE_COMMIT ?>)
+        </p>
+
         <p class="card-text">This wizard will guide you through the installation process of TS-website.</p>
         <p class="card-text text-danger" id="hidejs">Please enable Javascript before continuing!</p>
         <p class="card-text">

src/installer/pages/7.php

@@ -13,6 +13,7 @@ if(!empty($_COOKIE["tsw_allow_metrics"])) {
 
     $data = [
         "tswVersion" => __TSWEBSITE_VERSION,
+        "tswCommit" => __TSWEBSITE_COMMIT,
         "phpVersion" => PHP_VERSION,
         "os" => sprintf("%s %s %s %s", php_uname("s"), php_uname("r"), php_uname("v"), php_uname("m")), // no hostname
         "webServer" => $_SERVER["SERVER_SOFTWARE"],