Quote font URLs in HTML preamble to avoid issues

DiscordChatExporter.Core/Exporting/PreambleTemplate.cshtml

@@ -41,70 +41,70 @@
     @{/* Styling */}
     <style>
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("normal", 400)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("normal", 400))");
             font-family: gg sans;
             font-weight: 400;
             font-style: normal;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("normal", 500)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("normal", 500))");
             font-family: gg sans;
             font-weight: 500;
             font-style: normal;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("normal", 600)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("normal", 600))");
             font-family: gg sans;
             font-weight: 600;
             font-style: normal;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("normal", 700)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("normal", 700))");
             font-family: gg sans;
             font-weight: 700;
             font-style: normal;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("normal", 800)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("normal", 800))");
             font-family: gg sans;
             font-weight: 800;
             font-style: normal;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("italic", 400)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("italic", 400))");
             font-family: gg sans;
             font-weight: 400;
             font-style: italic;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("italic", 500)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("italic", 500))");
             font-family: gg sans;
             font-weight: 500;
             font-style: italic;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("italic", 600)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("italic", 600))");
             font-family: gg sans;
             font-weight: 600;
             font-style: italic;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("italic", 700)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("italic", 700))");
             font-family: gg sans;
             font-weight: 700;
             font-style: italic;
         }
 
         @@font-face {
-            src: url(@await ResolveAssetUrlAsync(GetFontUrl("italic", 800)));
+            src: url("@await ResolveAssetUrlAsync(GetFontUrl("italic", 800))");
             font-family: gg sans;
             font-weight: 800;
             font-style: italic;