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/helix/config.toml

@@ -0,0 +1,12 @@
+theme = "tokyonight"
+
+[editor]
+line-number = "relative"
+
+[editor.cursor-shape]
+insert = "bar"
+normal = "block"
+select = "underline"
+
+[editor.file-picker]
+hidden = false