Summary: Following D27059, add `parentGroupName` attribute to `group` element to generate kconfig settings with subgroups

Reviewers: ervin, dfaure, #frameworks, meven

Reviewed By: ervin, meven

Subscribers: apol, meven, kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D27133

Summary:
- Fix order of member initialisation (compiling with -Wreorder)
- Use Q_UNUSED where needed
- QAtomicInteger::loadRelaxed() has been available since Qt 5.14

Test Plan: make && ctest

Reviewers: #frameworks, dfaure, apol

Reviewed By: dfaure

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D27158

Summary:
KApiDox & ECMAddQch have been just teached about Q_DECLARE_FLAGS, so the
underlying typedefs are no longer skipped by doxygen, but can be
documented now, allowing links to be generated for these types e.g. when
used as arguments.

The "#" prefix to the enum name in the description text of all the
Q_DECLARE_FLAGS docs seems needed to properly trigger doxygen autolinks.

GIT_SILENT

Summary:
Fix the following bug, if an entry is set on HOME/.config/kdeglobals and on a specific config file like kcmfonts
When you hit restore defaults button and apply, value will be not wrote on the specific file, but then the value is the one from kdeglobals
This patch ensure we write the key to the specific configuration file on those case with an empty value. KConfig will take default value automatically

Test Plan:
Added a test to ensure flag is working
Tested using some KCM to ensure all is working fine

Reviewers: ervin, dfaure, meven, crossi, hchain

Reviewed By: ervin, dfaure, meven

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D28128

Summary:
Add a standard shortcut for this action so it can be synchronized between different apps
and the file dialog; see https://bugs.kde.org/show_bug.cgi?id=262551.

The action in Dolphin also has F8 bound to this, but the definition here only accept two
default shortcuts, and F8 seems kind of random.

CCBUG: 262551

Test Plan: Apply D28803 to KIO and D28804 to Dolphin and test there

Reviewers: dfaure, #frameworks

Reviewed By: dfaure

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D28802

A similar patch was approved in https://phabricator.kde.org/D26102

Summary:
This is an addendum for commit a2774ff5b41987c3919a9e; making the check
tighter.

Test Plan: make && ctest

Reviewers: #frameworks, dfaure, davidedmundson, cfeck, ervin, meven, bport

Reviewed By: dfaure

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D27811

Summary:
Convert license headers to SPDX statements and add
license files as required by REUSE specification.

Reviewers: cgiboudeaux

Reviewed By: cgiboudeaux

Subscribers: ognarb, cgiboudeaux, kde-frameworks-devel

Tags: #frameworks

Maniphest Tasks: T11550

Differential Revision: https://phabricator.kde.org/D27601

Summary:
Allow to write choices such as :
```
<choices>
    <choice name="enum_name" value="I can't containt (anything)"></choice>
    <choice name="normal_choice"></choice>
</choices>
```

Test Plan: ctest

Reviewers: ervin, bport, crossi, #frameworks

Reviewed By: ervin

Subscribers: ngraham, davidre, kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D27463