Added line wrapping for text in code examples to make it readable on normal sized screens (#688)

lnbits/static/scss/base.scss

@@ -140,4 +140,10 @@ video {
 // text-wrap
 .text-wrap {
     word-break: break-word;
+}
+
+.q-card {
+  code {
+    overflow-wrap: break-word;
+  }
 }