Improve conditionals to avoid code littering

[gomorizsolt]

(1) Instead of inline if conditions:

dotdev/src/components/Header/Header.js

Line 39 in e1fd40f

{settings.logo ? <Logo src={settings.logo} alt={settings.name} /> : null}

Use the && operator consistently(IIRC we already discussed this):

{settings.logo && <Logo src={settings.logo} alt={settings.name} />}

(2) Instead of && to ensure object fields:

dotdev/src/components/Header/Header.js

Line 42 in e1fd40f

{settings.header && settings.header.technologies ? (

Use the optional chaining operator:

{settings?.header?.technologies && ( ... )}

We may also find further improvements.

[thisismydesign]

Feel free to do these small refactors when you notice them.

[gomorizsolt]

https://github.com/zeit/next.js/releases/tag/v9.2.0

Use optional chaining syntax: #9975

Cool! The underlying framework supports the optional chaining operator out of the box. My gut feeling, though, is that we must tweak the linter config to make it work.