Changed . token to _dot

This change allows the dotfiles to work with chezmoi (e.g: on windows)
and improves grepability with neovim/telescope

dot_config/nushell/nu_scripts/modules/virtual_environments/venv.nu

@@ -0,0 +1,25 @@
+export def --env activate [venv_dir] {
+    let venv_abs_dir = ($venv_dir | path expand)
+    let venv_name = ($venv_abs_dir | path basename)
+    let old_path = $env.PATH
+    let new_path = (venv-path $venv_abs_dir)
+    let new_env =  ({VENV_OLD_PATH: $old_path, VIRTUAL_ENV: $venv_name} | merge $new_path)
+    load-env $new_env
+}
+
+def "venv-path" [venv_dir] {
+      let env_path = [
+        $venv_dir,
+        ([$venv_dir, "bin"] | path join)
+      ]
+      return {
+        PATH: ($env.PATH | prepend $env_path)
+      }
+}
+
+export def --env deactivate [] {
+    $env.PATH = $env.VENV_OLD_PATH
+    hide-env VIRTUAL_ENV
+    hide-env VENV_OLD_PATH
+
+}