The Kanban dev process was used many years ago but never in Nextcloud.
Therefore the process description is not just outdated but misleading.
We still use the labels, albeit their description was mildly outdated.
They were restructured and grouped for better comprehensibility.
Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>
This moves lots of pages around. The high-level changes are
* Better main sections, so it's more *general*, *into*, *basics* and *details*
* Move more general topics to a *Basic* section, which are not
app-specific
* Remove app docs to the stuff that is likely used, anything else goes
into "Digging deeper"
* Move general guides into a prologue
* Try to *compress*/combine some pages with similar content
* Try to have better consistencs on level ob abstraction across pages
* Split app development and maintenance pages into two sections
* Integrate bugtracker info into prologue
* Integrate Android pages into client APIs section
Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>