chore(Config): updated hasDarkThemeSwitcher var (#41)

Co-authored-by: Eric Olkowski <git.eric@thatblindgeye.dev>

Author: thatblindgeye

packages/module/patternfly-docs/patternfly-docs.config.js

@@ -2,6 +2,6 @@
 module.exports = {
   sideNavItems: [{ section: 'extensions' }],
   topNavItems: [],
-  hasDarkThemeSwitcher: true,
+  hasThemeSwitcher: true,
   port: 8006
 };