[docs] Improve fullWidth wording (#8610)

pages/api/form-control.md

@@ -24,7 +24,7 @@ This context is used by the following components:
 | component | ElementType | 'div' | The component used for the root node. Either a string to use a DOM element or a component. |
 | disabled | boolean | false | If `true`, the label, input and helper text should be displayed in a disabled state. |
 | error | boolean | false | If `true`, the label should be displayed in an error state. |
-| fullWidth | boolean | false | If `true`, the label will take up the full width of its container. |
+| fullWidth | boolean | false | If `true`, the component, as well as its children, will take up the full width of its container. |
 | margin | union:&nbsp;'none'<br>&nbsp;'dense'<br>&nbsp;'normal'<br> | 'none' | If `dense` or `normal`, will adjust vertical spacing of this and contained components. |
 | required | boolean | false | If `true`, the label will indicate that the input is required. |
 

pages/api/tabs.md

@@ -16,7 +16,7 @@ Notice that this Component is incompatible with server side rendering.
 | centered | boolean | false | If `true`, the tabs will be centered. This property is intended for large views. |
 | children | Node |  | The content of the component. |
 | classes | Object |  | Useful to extend the style applied to components. |
-| fullWidth | boolean | false | If `true`, the tabs will grow to use all the available space. This property is intended for small views. |
+| fullWidth | boolean | false | If `true`, the tabs will grow to use all the available space. This property is intended for small views, like on mobile. |
 | indicatorClassName | string |  | The CSS class name of the indicator element. |
 | indicatorColor | union:&nbsp;'accent'<br>&nbsp;'primary'<br>&nbsp;string<br> | 'accent' | Determines the color of the indicator. |
 | <span style="color: #31a148">onChange *</span> | Function |  | Callback fired when the value changes.<br><br>**Signature:**<br>`function(event: object, value: number) => void`<br>*event:* The event source of the callback<br>*value:* We default to the index of the child |

src/Form/FormControl.js

@@ -71,7 +71,8 @@ export type Props = {
    */
   error?: boolean,
   /**
-   * If `true`, the label will take up the full width of its container.
+   * If `true`, the component, as well as its children,
+   * will take up the full width of its container.
    */
   fullWidth?: boolean,
   /**

src/Tabs/Tabs.js

@@ -76,7 +76,7 @@ export type Props = {
   className?: string,
   /**
    * If `true`, the tabs will grow to use all the available space.
-   * This property is intended for small views.
+   * This property is intended for small views, like on mobile.
    */
   fullWidth?: boolean,
   /**