(Superseded) Add a "+ New Topic" button on every page

[erlend_sh (Erlend Sogge Heggen)]

Now maintained as a proper theme component:

(+ New topic) button on all pages

A simple theme component to add the + New Topic button to the header. The button will show on every page - even inside topics. Screenshots: Desktop: [Capture] Mobile: [Capture2] Settings: This component has 3 settings where you can choose the button icon, the button text, and whether or not to hide the default “New topic” button: [Capture3] Credit This is based on @techAPJ’s tutorial here: And on @dalerka’s patch to make things work with newer versions of Discourse here: I on…