Allow multiline TextInputs be submittable without blurring (#33653)

Summary:
For multiline TextInputs, it's possible to send the submit event when pressing the return key only with `blurOnSubmit`. However, there's currently no way to do so without blurring the input and dismissing the keyboard. This problem is apparent when we want to use a TextInput to span multiple lines but still have it be submittable (but not blurrable), like one might want for a TODO list.

![multiline-momentary-blur](https://user-images.githubusercontent.com/22553678/163596940-aae779f5-4d2a-4425-8ed0-e4aa77b90699.gif)

## Changelog

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[General] [Added] - Add `returnKeyAction` prop to `TextInput` component
[General] [Deprecated] - Remove usages of `blurOnSubmit` in native code and convert `blurOnSubmit` to `returnKeyAction` in the JavaScript conversion layer

Pull Request resolved: https://github.com/facebook/react-native/pull/33653

Test Plan:
Verified old usages of combinations of `blurOnSubmit` and `multiline` matched previous behavior and that the new `returnKeyAction` prop behaves as expected.

| Android | iOS |
| --- | -- |
| ![android-returnkeyaction-test](https://user-images.githubusercontent.com/22553678/163597864-2e306f98-7b6e-4ddf-8a35-625d397d3dce.gif) | ![ios-returnkeyaction-test](https://user-images.githubusercontent.com/22553678/163598407-9e059f74-3549-4b46-8e03-c19bfaa6dd3d.gif)  |

With the changes, the TODO list example from before now looks like this:

![multiline-no-momentary-blur](https://user-images.githubusercontent.com/22553678/163598810-f3a71d62-5514-486e-bf6a-79169fe86378.gif)

Reviewed By: yungsters

Differential Revision: D35735249

Pulled By: makovkastar

fbshipit-source-id: 1f2237a2a5e11dd141165d7568c91c9824bd6f25

Libraries/Components/TextInput/AndroidTextInputNativeComponent.js

@@ -66,6 +66,8 @@ export type ReturnKeyType =
   | 'route'
   | 'yahoo';
 
+export type SubmitBehavior = 'submit' | 'blurAndSubmit' | 'newline';
+
 export type NativeProps = $ReadOnly<{|
   // This allows us to inherit everything from ViewProps except for style (see below)
   // This must be commented for Fabric codegen to work.
@@ -520,9 +522,34 @@ export type NativeProps = $ReadOnly<{|
    * multiline fields. Note that for multiline fields, setting `blurOnSubmit`
    * to `true` means that pressing return will blur the field and trigger the
    * `onSubmitEditing` event instead of inserting a newline into the field.
+   *
+   * @deprecated
+   * Note that `submitBehavior` now takes the place of `blurOnSubmit` and will
+   * override any behavior defined by `blurOnSubmit`.
+   * @see submitBehavior
    */
   blurOnSubmit?: ?boolean,
 
+  /**
+   * When the return key is pressed,
+   *
+   * For single line inputs:
+   *
+   * - `'newline`' defaults to `'blurAndSubmit'`
+   * - `undefined` defaults to `'blurAndSubmit'`
+   *
+   * For multiline inputs:
+   *
+   * - `'newline'` adds a newline
+   * - `undefined` defaults to `'newline'`
+   *
+   * For both single line and multiline inputs:
+   *
+   * - `'submit'` will only send a submit event and not blur the input
+   * - `'blurAndSubmit`' will both blur the input and send a submit event
+   */
+  submitBehavior?: ?SubmitBehavior,
+
   /**
    * Note that not all Text styles are supported, an incomplete list of what is not supported includes:
    *
@@ -657,7 +684,7 @@ export const __INTERNAL_VIEW_CONFIG: PartialViewConfig = {
       process: require('../../StyleSheet/processColor'),
     },
     textDecorationLine: true,
-    blurOnSubmit: true,
+    submitBehavior: true,
     textAlignVertical: true,
     fontStyle: true,
     textShadowOffset: true,