💄 style: standarise font rendering across browsers

Use Source Serif ttf instead of otf for proper font rendering in Chromium.

Use Cascadia Code SemiLight to reduce filesize.

sass/main.scss

@@ -10,7 +10,7 @@
     /* Copyright 2014 - 2023 Adobe (http://www.adobe.com/), with Reserved Font Name ‘Source’.adobe.com/). Licensed under the SIL Open Font License, Version 1.1. More information available at: http://scripts.sil.org/OFL */
     font-family: 'Source Serif';
     src: local('Source Serif'),
-        url('fonts/SourceSerif4Variable-Roman.otf.woff2') format("woff2");
+        url('fonts/SourceSerif4Variable-Roman.ttf.woff2') format("woff2");
     font-display: swap;
 }
 
@@ -18,7 +18,7 @@
     /* Copyright 2019 - Present, Microsoft Corporation, with Reserved Font Name 'Cascadia Code'. Licensed under the SIL Open Font License, Version 1.1. More information available at: http://scripts.sil.org/OFL */
     font-family: 'Cascadia Code';
     src: local('Cascadia Code'),
-        url('fonts/CascadiaCode.woff2') format("woff2");
+        url('fonts/CascadiaCode-SemiLight.woff2') format("woff2");
     font-display: swap;
 }