Use `.native.tsx` instead of `.web.tsx`

[nandorojo]

React web apps don't use the .web.tsx pattern. However, all native apps do use platform extensions.

I'd propose changing MarkdownTextInput.tsx to have the web code, and MarkdownTextInput.tsx to have the React Native code. This way, Web developers don't need additional config to install the library.

I'm happy to do this in a PR if you'd merge it.

[nandorojo]

Further: we should remove the usage of StyleSheet.create in the web file. Creating the style, and then subsequently flattening it, is unnecessarily expensive with React Native Web. It's better to just use an object and pass it to a flat style prop.

This would also remove the dependency on react-native-web, making this far easier for Web developers to consume.

I've maintained so many RNW libraries, and I encourage you to avoid the headache of using it under the hood unless it's actually necessary

[tomekzaw]

@nandorojo Thanks for opening this issue. We're definitely open to such contribution, feel free to submit a PR.

Just one more thing – let's introduce .native.tsx suffix and remove .web.tsx suffix in one PR and then remove the usage of StyleSheet in another PR so we can keep the changes atomic.

[nandorojo]

PR opened here #582

[nandorojo]

Just one more thing – let's introduce .native.tsx suffix and remove .web.tsx suffix in one PR and then remove the usage of StyleSheet in another PR so we can keep the changes atomic.

Damn it, just saw this lol. I'll revert