[Bugfix] the Manifest Syntax error (#1524)

Fixes the Manifest Syntax error

src/main/resources/static/css/error.css

@@ -1,8 +1,3 @@
-p {
-  text-align: center;
-  margin-top: 2em;
-}
-
 .features-container {
   display: grid;
   grid-template-columns: repeat(auto-fill, minmax(21rem, 3fr));

src/main/resources/static/manifest.json

@@ -3,12 +3,12 @@
   "short_name": "Stirling-PDF",
   "icons": [
     {
-      "src": "/android-icon-192x192.png",
+      "src": "/android-chrome-192x192.png",
       "sizes": "192x192",
       "type": "image/png"
     },
     {
-      "src": "/android-icon-512x512.png",
+      "src": "/android-chrome-512x512.png",
       "sizes": "512x512",
       "type": "image/png"
     }

src/main/resources/static/site.webmanifest

@@ -1,6 +1,6 @@
 {
-    "name": "Stirling PDF",
-    "short_name": "Stirling PDF",
+    "name": "Stirling-PDF",
+    "short_name": "Stirling-PDF",
     "icons": [
       {
         "src": "/android-chrome-192x192.png",

src/main/resources/templates/fragments/common.html

@@ -13,7 +13,7 @@
     <link rel="apple-touch-icon" sizes="180x180" th:href="@{'/apple-touch-icon.png'}">
     <link rel="icon" type="image/png" sizes="32x32" th:href="@{'/favicon-32x32.png'}">
     <link rel="icon" type="image/png" sizes="16x16" th:href="@{'/favicon-16x16.png'}">
-    <link rel="manifest" th:href="@{'/site.webmanifest'}">
+    <link rel="manifest" th:href="@{'/site.webmanifest'}" crossorigin="use-credentials">
     <link rel="mask-icon" th:href="@{'/safari-pinned-tab.svg'}" color="#ca2b2a">
     <link rel="shortcut icon" th:href="@{'/favicon.ico'}">
     <meta name="apple-mobile-web-app-title" content="Stirling PDF">