[HTML] Use a clickable <div> instead of <a> for reply reference link

Fixes #546

DiscordChatExporter.Core/Exporting/Writers/Html/Core.css

@@ -244,16 +244,17 @@ img {
     flex-grow: 1;
     overflow: hidden;
     text-overflow: ellipsis;
-}
-
-.chatlog__reference-link:hover {
-    text-decoration: none;
+    cursor: pointer;
 }
 
 .chatlog__reference-content > * {
     display: inline;
 }
 
+.chatlog__reference-content > a:hover {
+    text-decoration: none;
+}
+
 .chatlog__reference-edited-timestamp {
     margin-left: 0.25em;
     font-size: 0.8em;

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

@@ -54,7 +54,7 @@
             {
                 <img class="chatlog__reference-avatar" src="@await ResolveUrlAsync(Model.MessageGroup.ReferencedMessage.Author.AvatarUrl)" alt="Avatar">
                 <span class="chatlog__reference-name" title="@Model.MessageGroup.ReferencedMessage.Author.FullName" style="@referencedUserColorStyle">@referencedUserNick</span>
-                <a class="chatlog__reference-link" href="#" onclick="scrollToMessage(event, '@Model.MessageGroup.ReferencedMessage.Id')">
+                <div class="chatlog__reference-link" onclick="scrollToMessage(event, '@Model.MessageGroup.ReferencedMessage.Id')">
                     <span class="chatlog__reference-content">
                         @if (!string.IsNullOrWhiteSpace(Model.MessageGroup.ReferencedMessage.Content))
                         {
@@ -70,7 +70,7 @@
                     {
                         <span class="chatlog__reference-edited-timestamp" title="@FormatDate(Model.MessageGroup.ReferencedMessage.EditedTimestamp.Value)">(edited)</span>
                     }
-                </a>
+                </div>
             }
             else
             {