docs(toast): remove hardware back button dismissal (#2854)

Co-authored-by: liamdebeasi <liamdebeasi@users.noreply.github.com>

Author: thetaPC

docs/api/toast.md

@@ -48,8 +48,12 @@ import ControllerExample from '@site/static/usage/v7/toast/presenting/controller
 
 ## Dismissing
 
+Toasts are intended to be subtle notifications and should not interrupt the user. As a result, user interaction should not be required to dismiss the toast.
+
 The toast can be dismissed automatically after a specific amount of time by passing the number of milliseconds to display it in the `duration` of the toast options. If a button with a role of `"cancel"` is added, then that button will dismiss the toast. To dismiss the toast after creation, call the `dismiss()` method on the instance.
 
+Pressing the hardware back button does not dismiss toasts since they are not supposed to interrupt the user.
+
 The following example demonstrates how to use the `buttons` property to add a button that automatically dismisses the toast when clicked, as well as how to collect the `role` of the dismiss event.
 
 import ButtonsPlayground from '@site/static/usage/v7/toast/buttons/index.md';

docs/developing/hardware-back-button.md

@@ -340,6 +340,6 @@ The table below lists all of the internal hardware back button event handlers th
 
 | Handler    | Priority | Propagates | Description                                                                                                                              |
 | ---------- | -------- | ---------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
-| Overlays   | 100      | No         | Applies to overlay components `ion-action-sheet`, `ion-alert`, `ion-loading`, `ion-modal`, `ion-popover`, `ion-picker`, and `ion-toast`. |
+| Overlays   | 100      | No         | Applies to overlay components `ion-action-sheet`, `ion-alert`, `ion-loading`, `ion-modal`, `ion-popover`, and `ion-picker`. |
 | Menu       | 99       | No         | Applies to `ion-menu`.                                                                                                                   |
 | Navigation | 0        | Yes        | Applies to routing navigation (i.e. Angular Routing).                                                                                    |

versioned_docs/version-v6/api/toast.md

@@ -91,8 +91,12 @@ function Example() {
 
 ## Dismissing
 
+Toasts are intended to be subtle notifications and should not interrupt the user. As a result, user interaction should not be required to dismiss the toast.
+
 The toast can be dismissed automatically after a specific amount of time by passing the number of milliseconds to display it in the `duration` of the toast options. If a button with a role of `"cancel"` is added, then that button will dismiss the toast. To dismiss the toast after creation, call the `dismiss()` method on the instance.
 
+Pressing the hardware back button does not dismiss toasts since they are not supposed to interrupt the user.
+
 The following example demonstrates how to use the `buttons` property to add a button that automatically dismisses the toast when clicked, as well as how to collect the `role` of the dismiss event.
 
 import ButtonsPlayground from '@site/static/usage/v6/toast/buttons/index.md';

versioned_docs/version-v6/developing/hardware-back-button.md

@@ -340,6 +340,6 @@ The table below lists all of the internal hardware back button event handlers th
 
 | Handler    | Priority | Propagates | Description                                                                                                                              |
 | ---------- | -------- | ---------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
-| Overlays   | 100      | No         | Applies to overlay components `ion-action-sheet`, `ion-alert`, `ion-loading`, `ion-modal`, `ion-popover`, `ion-picker`, and `ion-toast`. |
+| Overlays   | 100      | No         | Applies to overlay components `ion-action-sheet`, `ion-alert`, `ion-loading`, `ion-modal`, `ion-popover`, and `ion-picker`. |
 | Menu       | 99       | No         | Applies to `ion-menu`.                                                                                                                   |
 | Navigation | 0        | Yes        | Applies to routing navigation (i.e. Angular Routing).                                                                                    |