Fix section ordering with many same-named sections

Before, this was comparing, for example, `.text-2`
with `.text-10` with standard string comparison,
yielding `.text-10` before `.text-2`.

Instead, this simply uses a stable sort by name,
which preserves the relative ordering of sections.

objdiff-core/src/diff/display.rs

@@ -701,7 +701,7 @@ pub fn display_sections(
             });
         }
     }
-    sections.sort_by(|a, b| a.id.cmp(&b.id));
+    sections.sort_by(|a, b| a.name.cmp(&b.name));
     sections
 }