feat(cms): enhance policy editor with fullscreen mode and date picking

Improve the policy content management experience by adding a dedicated fullscreen editing mode and a structured date picker for effective dates.
- Implement fullscreen toggle in `policies-block-editor.js` with corresponding CSS for an expanded workspace
- Add `date` field type to `sharedFields.js` and integrate it into `policiesConfig.js`
- Implement date parsing and formatting utilities in `editor-script.ejs` to handle "Effective Date" strings
- Update `policiesController.js` to use `updateOne` for more reliable document persistence and state reloading
- Add support for `ICON_OPTIONS` in the policy editor configuration
- Refine editor UI layout and overflow handling for better stability with long content strings

utils/contentEditors/sharedFields.js

@@ -32,6 +32,13 @@ const text = (key, label, options = {}) => ({
   ...options,
 });
 
+const date = (key, label, options = {}) => ({
+  key,
+  label,
+  type: "date",
+  ...options,
+});
+
 const hidden = (key, options = {}) => ({
   key,
   type: "hidden",
@@ -169,6 +176,7 @@ const linkFields = (prefix = "Link") => [
 module.exports = {
   ICON_OPTIONS,
   text,
+  date,
   hidden,
   textarea,
   image,