Show results if already scanned

If the Dragonfly API returns a 409, then make another request to check
if the package has results already. If it does, then simply display
those results. If it doesn't, then that means the package is currently
in a "queued" or "pending" state. We can just send a feedback message
saying this in this case.

src/bot/exts/dragonfly/dragonfly.py

@@ -235,7 +235,17 @@ async def queue(self: Self, ctx: commands.Context, name: str, version: str) -> N
                 await ctx.send(f"Package `{name} v{version}` was not found on PyPI")
 
             if status_code == HTTPStatus.CONFLICT:
-                await ctx.send(f"Package `{name} v{version}` is already queued")
+                scan_results: list[PackageScanResult] = await self.bot.dragonfly_services.get_scanned_packages(
+                    name=name,
+                    version=version,
+                )
+                package = scan_results[0] if scan_results else None
+
+                if package:
+                    embed = _build_package_scan_result_embed(scan_results[0])
+                    await ctx.send(f"Package `{name} v{version}` has already been scanned.", embed=embed)
+                else:
+                    await ctx.send(f"Package `{name} v{version}` is already waiting to be scanned.")
         except Exception as e:
             await ctx.send(str(e))
             raise