adjust sizes and paddings

- icons in sidebar / content listing
- copy buttons
- nav spacing
- headings
- code blocks

src/components/MD_Title.tsx

@@ -21,7 +21,7 @@ const MD_Title: ParentComponent<{ titleVar: number }> = props => {
       <span class="heading-hashtag">
         <Hashtag />
       </span>
-      {props.children}
+      <span class="heading-text">{props.children}</span>
       <hr />
     </div>
   );

src/components/icons.tsx

@@ -173,7 +173,6 @@ export const Hashtag: VoidComponent<{
       viewBox="0 0 256 256"
       class={props.class}
     >
-      <title>Copy link</title>
       <path
         fill="currentColor"
         d="M224 90h-51l8.89-48.93a6 6 0 1 0-11.8-2.14L160.81 90H109l8.89-48.93a6 6 0 0 0-11.8-2.14L96.81 90H48a6 6 0 0 0 0 12h46.63l-9.46 52H32a6 6 0 0 0 0 12h51l-8.9 48.93a6 6 0 0 0 4.83 7A5.6 5.6 0 0 0 80 222a6 6 0 0 0 5.89-4.93l9.3-51.07H147l-8.89 48.93a6 6 0 0 0 4.83 7a5.6 5.6 0 0 0 1.08.1a6 6 0 0 0 5.89-4.93l9.28-51.1H208a6 6 0 0 0 0-12h-46.63l9.46-52H224a6 6 0 0 0 0-12m-74.83 64h-51.8l9.46-52h51.8Z"