Fix font sizes in HTML template

DiscordChatExporter.Core/Exporting/Writers/Html/PreambleTemplate.cshtml

@@ -61,7 +61,7 @@
             font-weight: 700;
         }
 
-        body {
+        html, body {
             margin: 0;
             padding: 0;
             background-color: @Themed("#36393e", "#ffffff");
@@ -104,7 +104,7 @@
 
         .preamble__entries-container {
             grid-column: 2;
-            margin-left: 0.6rem;
+            margin-left: 1rem;
         }
 
         .preamble__entry {
@@ -144,7 +144,7 @@
         .chatlog__message {
             display: grid;
             grid-template-columns: auto 1fr;
-            padding: 0.25rem 0;
+            padding: 0.15rem 0;
             direction: ltr;
             unicode-bidi: bidi-override;
         }
@@ -165,8 +165,8 @@
         }
 
         .chatlog__reference-symbol {
-            height: 12px;
-            margin: 4px 4px 4px 36px;
+            height: 10px;
+            margin: 6px 4px 4px 36px;
             border-left: 2px solid @Themed("#4f545c", "#c7ccd1");
             border-top: 2px solid @Themed("#4f545c", "#c7ccd1");
             border-radius: 8px 0 0 0;
@@ -251,7 +251,7 @@
         }
 
         .chatlog__header {
-            margin-bottom: 0.25rem;
+            margin-bottom: 0.1rem;
         }
 
         .chatlog__author {
@@ -261,7 +261,7 @@
 
         .chatlog__bot-label {
             position: relative;
-            top: -.1rem;
+            top: -0.1rem;
             margin-left: 0.3rem;
             padding: 0.05rem 0.3rem;
             border-radius: 3px;