Navigation.updateProps also clears untouched props

[mrousavy]

Issue Description

When using Navigation.updateProps(...), untouched props should remain unchanged, but they're being set to undefined.

@guyca pointed out that the issue might be caused by a missing spread operator in ComponentWrapper::setProps(...)

Steps to Reproduce / Code Snippets / Screenshots

1. Create screen/modal/overlay with props type:

   { foo: number, bar: string }

2. Show screen/modal/overlay with props:

   { foo: 0, bar: 'hello' }

3. Print props in render function of component:

   console.log(JSON.stringify(props))
   // outputs: { foo: 0, bar: 'hello' }

4. Call updateProps:

   Navigation.updateProps(SCREEN_COMPONENT_ID, { foo: 1 })

5. Print props in render function of component:

   console.log(JSON.stringify(props))
   // outputs: { foo: 1, bar: undefined }

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Environment

• React Native Navigation version: 6.12.2
• React Native version: 0.63.2
• Platform(s) (iOS, Android, or both?): iOS, Android
• Device info (Simulator/Device? OS version? Debug/Release?): all