fix: mathjax footnotes moved to buckram (#1268)

Author: arzola

assets/styles/components/_specials.scss

@@ -38,8 +38,6 @@ $footnote-blockquote-margin-left: 1.5em !default;
 $footnote-blockquote-font-size: 0.95em !default;
 $footnote-number-marker-font-size: $sup-sub-font-size !default;
 $footnote-number-marker-line-height: $sup-sub-line-height !default;
-$footnote-mathjax-width: 3em !default;
-$footnote-mathjax-padding-bottom: 0.4em !default;
 
 // Endnotes
 $endnote-margin-left: 1.5em !default;

dist/mix-manifest.json

@@ -1,5 +1,5 @@
 {
-    "/scripts/book.js": "/scripts/book.js?id=93a82497e30e003e18a2733ea64a8897",
+    "/scripts/book.js": "/scripts/book.js?id=4933ce814a30d618fc3381b04adbc909",
     "/scripts/pane.js": "/scripts/pane.js?id=7e5b385cb135973c79f77706c6f54cd1",
     "/scripts/collapse-sections.js": "/scripts/collapse-sections.js?id=b902d882dd21410b4387d805cd8a197f",
     "/scripts/lightbox.js": "/scripts/lightbox.js?id=cb2b7b2a5fb303c3095de89b8c31a28c",