Fix setup when executed outside dotfiles directory

setup.sh

@@ -60,7 +60,7 @@ elif [ $remove -eq 0 ]; then
 fi
 
 # install vscode configs
-source vscode.sh
+source "$DIR"/vscode.sh
 
 # set up SSH config and create key if needed
-source ssh.sh
+source "$DIR"/ssh.sh

vscode.sh

@@ -38,7 +38,7 @@ fi
 # install extensions
 while read -r line; do
 	"${VSCODE_BINARY[@]}" --install-extension "$line"
-done < vscode/extensions
+done < "$DIR"/vscode/extensions
 
 # backup settings/keybinds files, then create symlinks
 # TODO: do the same for snippets dir files