Update dependencies, implement new features

package.json

@@ -1,6 +1,6 @@
 {
     "name": "doomsday",
-    "version": "1.3.5",
+    "version": "1.3.6",
     "description": "Test your mastery of Conway's Doomsday rule.",
     "author": "Felix W. Dekker",
     "browser": "dist/bundle.js",
@@ -16,12 +16,12 @@
         "deploy": "grunt deploy"
     },
     "dependencies": {
-        "@fwdekker/template": "^0.0.13",
+        "@fwdekker/template": "^0.0.18",
         "js-cookie": "^2.2.1"
     },
     "devDependencies": {
         "@types/js-cookie": "^2.2.6",
-        "grunt": "^1.1.0",
+        "grunt": "^1.2.1",
         "grunt-cli": "^1.3.2",
         "grunt-contrib-clean": "^2.0.0",
         "grunt-contrib-copy": "^1.0.0",
@@ -29,7 +29,7 @@
         "grunt-focus": "^1.0.0",
         "grunt-text-replace": "^0.4.0",
         "grunt-webpack": "^3.1.3",
-        "webpack": "^4.42.1",
-        "webpack-cli": "^3.3.11"
+        "webpack": "^4.43.0",
+        "webpack-cli": "^3.3.12"
     }
 }

src/main/js/index.js

@@ -204,7 +204,7 @@ class ToggleableSection {
      * @private
      */
     _storeToggle() {
-        Cookies.set(`toggle-${this._name}`, this.isOpened(),
+        Cookies.set(`toggle-${this._name}`, "" + this.isOpened(),
             {expires: 365 * 10, secure: true, sameSite: "lax", path: ""});
     }
 
@@ -351,7 +351,7 @@ class DoomsdayDate {
 
 doAfterLoad(() => {
     // Initialize template
-    $("#nav").appendChild(nav());
+    $("#nav").appendChild(nav("/Tools/Doomsday/"));
     $("#header").appendChild(header({
         title: "Doomsday",
         description: `