GitLab: fix a bunch of links

wiki/src/contribute/roadmap.mdwn

@@ -55,7 +55,8 @@ Priorities for the next years
 
 - <strike>**Release Tails 4.0 based on Debian Buster** ([[Version 4.0|news/version_4.0]])</strike> [DONE]
 - **Solve important usability issues** in our core applications
-  ([[!tails_gitlab tails/tails/-/issues?scope=all&utf8=✓&state=opened&label_name[]=UX%3Adebt]])
+  ([[!tails_gitlab tails/tails/-/issues?scope=all&utf8=✓&state=opened&label_name%5B%5D=UX%3Adebt
+  desc="issues with the _UX:debt_ label"]])
 - **Port complex shell scripts to Python** ([[!tails_ticket 11198]], [[Blueprint|blueprint/Port_shell_scripts_to_Python]])
 - <strike>**Migrate from `aufs` to `overlayfs`** ([[!tails_ticket 8415]])</strike> [DONE]
 - **Have more robust time synchronization** when starting Tails ([[!tails_ticket 5774]], [[Blueprint|blueprint/robust_time_syncing]])

wiki/src/contribute/working_together/roles/ticket_gardener.mdwn

@@ -24,7 +24,7 @@ This work should be done twice per year.
   requalified, be rejected, or stay in this state.
 
 * [[!tails_gitlab
-  groups/tails/-/issues?scope=all&utf8=✓&state=opened&label_name[]=Doing&assignee_id=None
+  groups/tails/-/issues?scope=all&utf8=✓&state=opened&label_name%5B%5D=Doing&assignee_id=None
   desc="WIP without assignee"]]:
   identify issues that have a majority of work completed and could
   somewhat easily be finished. Create a list of those issues and send

wiki/src/doc/first_steps/persistence/configure.mdwn

@@ -50,7 +50,7 @@ Persistent Storage:
 [[!tails_ticket 5979 desc="mouse and touchpad settings"]],
 etc. See the
 [[!tails_gitlab
-groups/tails/-/issues?scope=all&utf8=✓&state=opened&label_name[]=C%3APersistence
+groups/tails/-/issues?scope=all&utf8=✓&state=opened&label_name%5B%5D=C%3APersistence
 desc="corresponding issues"]]
 for more details.<p>
 

wiki/src/support/faq.mdwn

@@ -330,7 +330,7 @@ sessions. See the list of existing [[features of the Persistent Storage|doc/firs
 We are frequently requested to add new features to the Persistent Storage but we are usually
 busy working on other priorities. See our
 [[!tails_gitlab
-groups/tails/-/issues?scope=all&utf8=✓&state=opened&label_name[]=C%3APersistence
+groups/tails/-/issues?scope=all&utf8=✓&state=opened&label_name%5B%5D=C%3APersistence
 desc="open issues"]]
 about the Persistent Storage. Any bit of help [[is welcome|contribute/how/code]].