I wrote a [script](https://github.com/j0lv3r4/dependency-version-updater) to update dependencies recursively in `package.json` files, e.g.:
```
$ node index.js --path="./examples" --dependencies="react=^16.7.0,react-dom=^16.7.0"
```
This PR contains the result against the examples folder.
On the server `props.initialMobxState` received by the `constructor` is a fully functioning mobx store that was instantiated by `getInitialProps()` only a few ticks earlier.
Thus, creating a new instance is unneccessary.
In the browser, however, `props.initialMobxState` is a hydrated plain object and thus the store needs to be initialized.
I spent far too much time fiddling with this example project before realizing it contained a bug in the store initialization logic and it was a bit more complex than it needed to be.
* The custom server was not needed
* The store-initialization did effectively the same thing twice for no reason
* And wrapping MyApp component in a HOC was wholly unnecessary indirection
My changes are split into four discrete commits for clarity.
fixes#4390
* Installing only `babel-plugin-transform-decorators-legacy` didn't work
* It also needs to install `babel-plugin-transform-class-properties`
* Examples: clarify language around Yarn create & npx
* add missing READMEs and create-next-app usage
* suggest people tag jthegedus in firebase related issues
* add yarn alt instructions
* cerebraljs example readme & fixes
* remove global npm install of create-next-app
* add npx to create-next-app command in examples
* add bash to shell snippets
* add yarn create to next-app command in examples
* fix READMEs named with lowercase
* change READMEs to use UPPERCASE
* Added server.js to configure useStaticRendering on start
* Update package to use server.js
* auto format with standard instead of prettier :( fixes broken test
* Adds mobx example
* Fix coding style to match JS Standard
* Removes unecessary link
* Update README.md
* Update README.md
* Change next version from beta to ^2.0.0-beta
* Assigns the store to a local var
* Adds navigation in the example
* Removes unecessary imports
* Fix coding style to match JS Standard
* Fix Clock import
