Fix #839: Prefix review-comment commands with "Codev:"

Two contributes.commands entries in packages/vscode/package.json were
missing the "Codev:" prefix used by every other declared command,
making them look like they came from a different extension in the
VS Code Feature Contributions tab.

- codev.submitReviewComment: "Submit review comment" -> "Codev: Submit Review Comment"
- codev.deleteReviewComment: "Delete review comment" -> "Codev: Delete Review Comment"

All 40 entries on the Feature Contributions command list now start with "Codev:".

Author: amrmelsayed

packages/vscode/package.json

@@ -211,12 +211,12 @@
       },
       {
         "command": "codev.submitReviewComment",
-        "title": "Submit review comment",
+        "title": "Codev: Submit Review Comment",
         "enablement": "!commentIsEmpty"
       },
       {
         "command": "codev.deleteReviewComment",
-        "title": "Delete review comment",
+        "title": "Codev: Delete Review Comment",
         "icon": "$(trash)"
       }
     ],