refactor: Reduce bundle size, replace date picker and merge function, add widget order feature etc

Co-authored-by: Alex Sparkes <turbomarshmello@gmail.com>

src/modules/default_settings.json

@@ -126,5 +126,9 @@
   {
     "name": "fontweight",
     "value": 400
+  },
+  {
+    "name": "order",
+    "value": "[\"greeting\", \"time\", \"quote\", \"date\"]"
   }
 ]

src/modules/helpers/merge.js

@@ -1,19 +0,0 @@
-export default function deepmerge(...objects) {
-  let target = {};
-
-  const merge = (obj) => {
-    for (let prop in obj) {
-      if (obj.hasOwnProperty(prop)) {
-        if (typeof obj[prop] === 'object') {
-          target[prop] = deepmerge(target[prop], obj[prop]);
-        } else {
-          target[prop] = obj[prop];
-        }
-      }
-    }
-  };
-
-  objects.forEach(object => merge(object));
-
-  return target;
-}