Scheduler: Update Date Navigator How To (#8747)

[arman-boyakhchyan]

No description provided.

[Copilot]

Pull request overview

Updates the Scheduler “Date Navigator” guide to better explain what the date navigator is, how to customize its buttons via toolbar item options, how to constrain navigation with min/max, and how to hide the navigator by overriding toolbar items.

Changes:

• Expanded the introduction to describe the date navigator as a predefined Scheduler toolbar item backed by a ButtonGroup, with customization examples for jQuery/Angular/Vue/React.
• Updated min/max examples (including Vue/React refactors) and clarified the customizeDateNavigatorText mention.
• Added a new section showing how to hide the date navigator by omitting it from toolbar.items.

Comments suppressed due to low confidence (2)

concepts/05 UI Components/Scheduler/055 Date Navigator.md:135

• DxSchedulerModule is imported in this snippet but not used (there is no @NgModule example here). Either remove the import or include the minimal module setup that shows where DxSchedulerModule should be added.

    import { DxSchedulerModule } from 'devextreme-angular'
    // ...

concepts/05 UI Components/Scheduler/055 Date Navigator.md:184

• This jQuery snippet initializes dxScheduler without a DOM-ready wrapper. If the script executes before the container element exists, initialization can fail. Wrap this code in $(function() { ... }) (or ensure it runs after the container is rendered) to make the example reliable.

    <!--tab: index.js-->
    $("#scheduler-container").dxScheduler({
        // ...