added support for the sitemapnavi plugin

When installed the navigation can be switched between the default
sidebar based navigation and the site tree

QS: remove unused translations in lang.php

link style in TH added

SPR-947: check Lang-Strings

SPR-950 changes for mobile header,
Bugfix edit Mode of document

keyboard access + direct link scrolling

Merge branch 'master' into 'spis-master'

# Conflicts:
# lang/en/lang.php

Merge remote-tracking branch 'origin/breadcrumbs'
SPR-972: german translation

SPR-969: change wording for head_breadcrumb in head_breadcrumb_youarehere to show that it is used for hierarchical breadcrumbs (conf-option youarehere)

Merge branch 'master' of gitlab.cosmocode.de:deutschlaender/sprintdoc-template into spis-master

# Conflicts:
# lang/de/lang.php

SPR-908: qs font-size, color, padding

Merge branch 'master' into 'userTasksOverlay'

# Conflicts:
# css/area_nav-usertools.less

Adjust less vars for compatibility

In the dokuwiki standard template __background__ is the variable
defining the background-color of the content. It is one of the
guaranteed placeholder that every t

Adjust less vars for compatibility

In the dokuwiki standard template __background__ is the variable
defining the background-color of the content. It is one of the
guaranteed placeholder that every template must provide. Hence we should
use it with the way it is used in the default template, so other plugins
can rely on it and look consistently.

Also some other base-dokuwiki styles still use it accordingly, for
example the footnotes.

SPR-954

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Use do-plugin's user task button w/ overlay

Motivation
----------
Since we do not have a dashboard it would be useful to directly see
one's task on click upon the respective icon. Also this is most

Use do-plugin's user task button w/ overlay

Motivation
----------
Since we do not have a dashboard it would be useful to directly see
one's task on click upon the respective icon. Also this is most likely
the dominating reason of the dashboard-usage.

Implementation Decisions
------------------------
* Use SVG: Since we move towards using SVG everywhere in DokuWiki, I
decided to use a SVG icon here as well. This makes it compatible with
other templates too, without introducing an icon-font there.
* Using a `<span>` instead of a `<strong>`: I do not see the semantic reason
behind using a `<strong>` here.

Other Changes
-------------
* The styles related to the do-plugin have been moved from
css/area_nav-usertools.less to css/plugins/do_tasks.less

This needs the respective pull request merged from the do-plugin:
https://github.com/cosmocode/do/pull/31

SPR-962

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SPR-930: pseudo state for breadcrumb on detail template
SPR-814: prevent Uncaught TypeErrors of JSINFO in detail template

SPR-814: detail template local merges

SPR-814: detail template

SPR-742: Konfigurierbarkeit - wording

SPR-742: wording in configuration view

SPR-742: Konfigurierbarkeit zuordnung

SPR-742: Konfigurierbarkeit wording

SPR-742: Konfigurierbarkeit wording german prepared

adjusted language

use proper translation mechanism for JS SPR-798

merge jde_bar_search and bar_search branch