JENKINS-58912/JENKINS-58938: Fix Groovy compilation error that breaks the UI.

(cherry picked from commit e8df387e)

[JENKINS-59167] Correction of rootUrl in RSS/Atom feeds

(cherry picked from commit 26c85230)

(cherry picked from commit fb88530f)

Co-Authored-By: NDaniel Beck <daniel-beck@users.noreply.github.com>
(cherry picked from commit ace5965b)

Fix invalid condition in toEmailSafeString

Remove useless conditions

Upgrade to 3.34 version of Remoting.

JENKINS-36720: Fixed some spotbugs findings 

Update mockito 3.0.0

Co-Authored-By: NRamon Leon <manuelramonleonjimenez@gmail.com>

German translations.

See c5c80371 for initial change.

This fixes the issue when the project name
includes a character that can't be encoded
directly in UTF-8, e.g., surrogate pairs.

Just noticed that I forgot to change the layout

* [JENKINS-54772] Fix reported list of environment variables from agent

* Feedback incorporated

* Code moved to SlaveComputer class

Categories match what we have on https://jenkins.io/changelog/ , except localization fixes which get a new category in the bottom

* [JENKINS-58734] Use SHA-256 for crumbs
Signed-off-by: NMatt Sicker <boards@gmail.com>

* Use SHA-256 more consistently
Signed-off-by: NMatt Sicker <boards@gmail.com>

* [JENKINS-58157] Fixing 'delete build' button too long

* Update breadcrumbs.css

Signed-off-by: NMatt Sicker <boards@gmail.com>