docs: Update CODEOWNERS

explicitly add myself and Nishant so we are flagged appropriately.

see #2407 (comment)

Author: SgtPooki

.github/CODEOWNERS

@@ -5,4 +5,4 @@
 # these owners will be requested for review when someone
 # opens a pull request.
 # All GUI Teams: @ipfs-shipyard/ipfs-gui @ipfs-shipyard/gui @ipfs/gui-dev @ipfs/wg-gui-ux
-*   @ipfs/gui-dev
+*   @ipfs/gui-dev @sgtpooki @whizzzkid