make theme switcher in some examples works

Author: jonnysp

site/content/docs/5.3/examples/blog-rtl/index.html

@@ -5,7 +5,6 @@
 extra_css:
   - "https://fonts.googleapis.com/css?family=Amiri:wght@400;700&display=swap"
   - "../blog/blog.rtl.css"
-include_js: false
 ---
 
 <div class="container">

site/content/docs/5.3/examples/blog/index.html

@@ -4,7 +4,6 @@
 extra_css:
   - "https://fonts.googleapis.com/css?family=Playfair+Display:700,900&display=swap"
   - "blog.css"
-include_js: false
 ---
 
 <div class="container">

site/content/docs/5.3/examples/cover/index.html

@@ -5,7 +5,6 @@
   - "cover.css"
 html_class: "h-100"
 body_class: "d-flex h-100 text-center text-bg-dark"
-include_js: false
 ---
 
 <div class="cover-container d-flex w-100 h-100 p-3 mx-auto flex-column">

site/content/docs/5.3/examples/grid/index.html

@@ -4,7 +4,6 @@
 extra_css:
   - "grid.css"
 body_class: "py-4"
-include_js: false
 ---
 
 <main>

site/content/docs/5.3/examples/jumbotron/index.html

@@ -1,7 +1,6 @@
 ---
 layout: examples
 title: Jumbotron example
-include_js: false
 ---
 
 <main>

site/content/docs/5.3/examples/pricing/index.html

@@ -3,7 +3,6 @@
 title: Pricing example
 extra_css:
   - "pricing.css"
-include_js: false
 ---
 
 <svg xmlns="http://www.w3.org/2000/svg" style="display: none;">

site/content/docs/5.3/examples/sign-in/index.html

@@ -4,7 +4,6 @@
 extra_css:
   - "sign-in.css"
 body_class: "text-center"
-include_js: false
 ---
 
 <main class="form-signin w-100 m-auto">

site/content/docs/5.3/examples/sticky-footer/index.html

@@ -5,7 +5,6 @@
   - "sticky-footer.css"
 html_class: "h-100"
 body_class: "d-flex flex-column h-100"
-include_js: false
 ---
 
 <!-- Begin page content -->