Button: add Overview (#6622)

concepts/05 UI Components/Button/02 Overview/00 Overview.md

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+DevExtreme Button component is an interactive UI element that allows users to trigger specific actions or events within an application.
+
+In this overview you can find a map of Button elements, information about key features, and what to explore next.

concepts/05 UI Components/Button/02 Overview/05 Elements.md

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+Below is an element map. A click on an element navigates to the topic related to this element.
+
+<p><img src="/images/Button/button-elements.png" alt="Button elements" usemap="#button-elements">
+
+<map id="button-elements" name="button-elements">
+    <area target="_blank" alt="Text" title="Text" href="/Documentation/ApiReference/UI_Components/dxButton/Configuration/#text" coords="413,381,294,99" shape="rect">
+    <area target="_blank" alt="Icon" title="Icon" href="/Documentation/ApiReference/UI_Components/dxButton/Configuration/#icon" coords="809,98,876,379" shape="rect">
+    <area target="_blank" alt="Type" title="Type" href="/Documentation/ApiReference/UI_Components/dxButton/Configuration/#type" coords="421,103,632,380" shape="rect">
+    <area target="_blank" alt="Change Icon Position" title="Change Icon Position" href="/Documentation/Guide/UI_Components/Button/Change_Icon_Position/" coords="641,100,803,379" shape="rect">
+</map></p>

concepts/05 UI Components/Button/02 Overview/10 Key Features.md

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+- **Labeling**    
+You can label DevExtreme Button with [text](/Documentation/ApiReference/UI_Components/dxButton/Configuration/#text), an [icon](/Documentation/ApiReference/UI_Components/dxButton/Configuration/#icon), or both to indicate its function.
+
+- **State Management**    
+Button states include default, [hover](/Documentation/ApiReference/UI_Components/dxButton/Configuration/#hoverStateEnabled), [active](/Documentation/ApiReference/UI_Components/dxButton/Configuration/#activeStateEnabled), and [disabled](/Documentation/ApiReference/UI_Components/dxButton/Configuration/#disabled).
+
+- **Action Binding**    
+You can bind Button to a function triggered when the button [is clicked](/Documentation/ApiReference/UI_Components/dxButton/Configuration/#onClick). Actions can include [submitting a form](/Documentation/Guide/UI_Components/Button/Validate_and_Submit_an_HTML_Form/), navigating to another page, or executing a custom script.

concepts/05 UI Components/Button/02 Overview/15 Explore More.md

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+- [Getting Started with Button](/concepts/05%20UI%20Components/Button/00%20Getting%20Started%20with%20Button '/Documentation/Guide/UI_Components/Button/Getting_Started_with_Button/')
+
+- [API](/api-reference/10%20UI%20Components/dxButton '/Documentation/ApiReference/UI_Components/dxButton/')
+
+- [Demos](/concepts/05%20UI%20Components/Button/Demos.md '/Documentation/Guide/UI_Components/Button/Demos/')