base.html: re-add scroll bars

My only grief with scroll bars was not even with scroll bars, but FF's
shitty contrast breaking scroll bars in dark backgrounds. Fortunately
that has been settled for in the latest beta.

Also I was missing using a scrollbar on the pastebin :p

Signed-off-by: Gunwant Jain <mail@wantguns.dev>

templates/base.html.tera

@@ -29,17 +29,6 @@
           color: #5c6773;
       }
 
-      /* remove scrollbar */
-      html {
-          overflow: scroll;
-          overflow-x: hidden;
-          scrollbar-width: none;
-      }
-      ::-webkit-scrollbar {
-          width: 0px;
-          background: transparent;
-      }
-
       ::selection {
           /* text selection color
              make sure to change to your your preferred color if changing the default colorscheme */