refactor: Netlify CMS as an optional module

ALso
- update Netlify.toml Hugo version to latest
- update to latest Wowchemy v5-dev master & upgrade config/ and author profile

config/_default/config.toml

@@ -108,3 +108,5 @@ ignoreFiles = ["\\.ipynb$", ".ipynb_checkpoints$", "\\.Rmd$", "\\.Rmarkdown$", "
 [module]
   [[module.imports]]
     path = "github.com/wowchemy/wowchemy-hugo-modules/wowchemy"
+  [[module.imports]]
+    path = "github.com/wowchemy/wowchemy-hugo-modules/netlify-cms-academic"

config/_default/params.toml

@@ -147,7 +147,7 @@ address_format = "en-us"
 ############################
 
 # Main menu alignment (l = left, c = center, r = right) and logo options.
-main_menu = {align = "l", show_logo = true, highlight_active_link = true, show_language = false}
+main_menu = {align = "l", show_logo = true, highlight_active_link = true, show_language = false, show_day_night = true, show_search = true}
 
 # Show estimated reading time for posts? (true/false)
 reading_time = true
@@ -163,9 +163,6 @@ sharing = true
 # Page specific copyright licenses are also possible by adding this option to a page's front matter.
 copyright_license = {enable = false, allow_derivatives = false, share_alike = true, allow_commercial = false, notice = "This work is licensed under {license}"}
 
-# Highlight the site author (superuser) in author lists? (true/false)
-highlight_superuser = false
-
 # Link authors to their profile page? (true/false)
 link_authors = true