feat: Update TextInput inputMode to map "none" to showSoftInputOnFocus (

#35228)

Summary:
This PR updates `inputMode` prop from the `TextInput` component to map the `none` option to `showSoftInputOnFocus={false}`  as suggested by necolas here -> #34460 (comment). This change makes the inputMode API behaves a bit more similarly across platforms.

Related to necolas/react-native-web#2421

## Changelog

[General] [Changed] -  Update TextInput inputMode to map "none" to showSoftInputOnFocus

## Test Plan

1. Open the RNTester app and navigate to the TextInput page
2. Test the `TextInput` component through the `Input modes` section

https://user-images.githubusercontent.com/11707729/200218435-6a33b319-e989-4086-aac3-506546982b38.mov

Pull Request resolved: #35228

Reviewed By: lunaleaps, necolas

Differential Revision: D41081876

Pulled By: jacdebug

fbshipit-source-id: cc634c3723647d8950bf2cfe67be70d0fbd488a6

Libraries/Components/TextInput/TextInput.js

@@ -1602,6 +1602,7 @@ const ExportedForwardRef: React.AbstractComponent<
     enterKeyHint,
     returnKeyType,
     inputMode,
+    showSoftInputOnFocus,
     keyboardType,
     ...restProps
   },
@@ -1628,6 +1629,9 @@ const ExportedForwardRef: React.AbstractComponent<
       keyboardType={
         inputMode ? inputModeToKeyboardTypeMap[inputMode] : keyboardType
       }
+      showSoftInputOnFocus={
+        inputMode == null ? showSoftInputOnFocus : inputMode !== 'none'
+      }
       autoComplete={
         Platform.OS === 'android'
           ? // $FlowFixMe