[AccessKit] toggle to disable (some?) XKit animations (#1970)

Co-authored-by: April Sylph <april@sylph.tech>

Author: marcustyphoon

Extensions/accesskit.js

@@ -1,5 +1,5 @@
 //* TITLE AccessKit **//
-//* VERSION 2.0.0 **//
+//* VERSION 2.0.1 **//
 //* DESCRIPTION Accessibility tools for Tumblr **//
 //* DETAILS Provides accessibility tools for XKit and your dashboard, such as increased font sizes, more contrast on icons and more. **//
 //* DEVELOPER new-xkit **//
@@ -84,6 +84,11 @@ XKit.extensions.accesskit = new Object({
 			default: false,
 			value: false
 		},
+		xkit_disable_animation: {
+			text: "Disable some XKit animations",
+			default: false,
+			value: false
+		},
 		"sep-1": {
 			text: "Color Adjustments",
 			type: "separator"
@@ -131,6 +136,8 @@ XKit.extensions.accesskit = new Object({
 
 		XKit.tools.init_css('accesskit');
 
+		$.fx.off = this.preferences.xkit_disable_animation.value;
+
 		if (XKit.page.react) {
 			const {font, make_links_blue, no_npf_colors, increase_post_margins, xkit_contrast_icons} = this.preferences;