always align code to the left - fixes #436

"featured notes" on the welcome page's right-hand column are shown
with the text right-aligned; code should not be affected by that. This
makes sure it isn't

packages/frontend/src/components/MkCode.core.vue

@@ -72,6 +72,10 @@ watch(() => props.lang, (to) => {
 </script>
 
 <style module lang="scss">
+.codeBlockRoot {
+  text-align: left;
+}
+
 .codeBlockRoot :global(.shiki) > code {
   counter-reset: step;
   counter-increment: step 0;