🌟 feat: add "sandbox" tip for code sharing (#52)

Author: hmd-ali

src/commands/tips/subjects/sandbox.md

@@ -0,0 +1,13 @@
+---
+name: Sandbox
+---
+
+It would be much easier to help you if we could see (parts) of your code! Try reproducing your issue on one of these sites, save and then link it here:
+
+- <https://codepen.io/> - requires account
+- <https://codesandbox.io/>
+- <https://repl.it/>
+- <https://ideone.com/>
+- <https://jsfiddle.net/>
+
+Sometimes trying to recreate a problem outside of your project already helps you track down the issue on your own.