Fix content overflow caused by long unbreakable strings

Add word-breaking rules to handle magnet links and long URLs that cause
horizontal overflow. Uses word-wrap, overflow-wrap, and word-break to
force long strings to wrap instead of overflowing containers.

make_post_sell/static/css/common.css

@@ -282,6 +282,9 @@ section.content {
     max-width: 100%;
     overflow-x: auto;
     box-sizing: border-box;
+    word-wrap: break-word;
+    overflow-wrap: break-word;
+    word-break: break-all;
 }
 
 .mps-button {