refactor(env): change virtual environment path to local .venv

.envrc

@@ -3,7 +3,7 @@ export PYTHON_KEYRING_BACKEND="keyring.backends.null.Keyring"
 export PROJECT_NAME="dotfiles"
 PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 export PROJECT_ROOT
-VIRTUAL_ENV="${WORKON_HOME}/${PROJECT_NAME}"
+VIRTUAL_ENV="./.venv"
 if [ -e "${VIRTUAL_ENV}/bin/activate" ]; then
     # shellcheck disable=SC1091
     source "${VIRTUAL_ENV}/bin/activate"