chore(gitignore): add legacy and .vscode/ to ignore list

Author: amaurigmartins

.gitignore

@@ -28,6 +28,7 @@ Manifest.toml
 # the hidden folder of shame
 temp/
 @INPROGRESS/
+legacy/
 
 # Internal files
 dev
@@ -50,4 +51,5 @@ sprint
 .github/instructions
 .github/prompts
 test/jl_*
-*.sh
+*.sh
+.vscode/