QDS-14556 Extend tests

This MR brings the following changes;

• fix: design studio manager does not fire disconnected signal
• add: a new function to reset the settings
• tests: new tests for design studio integration, settings, and project management
• tests: test app now has the same app-icon with the Qt UI Viewer
• doc: update README to fix the xunit-viewer usage example
• cicd: build single multi-arch aab that contains all available platforms (QDS-14698)

cicd/stages/build.yml

@@ -75,7 +75,7 @@ build-android:
       - QDS_CI_JOB_TARGET_ARCH: "x86_64"
         QDS_CI_JOB_OPENSSL_PATH: "/opt/openssl/ssl_3/x86_64"
   variables:
-    QDS_CI_JOB_BUILD_PATH: "${QDS_CI_CACHE_PATH}/${QDS_CI_JOB_TARGET_ARCH}/build"
+    QDS_CI_JOB_BUILD_PATH: "${CI_PROJECT_DIR}/${QDS_CI_JOB_TARGET_ARCH}/build"
     QDS_CI_JOB_ARTIFACTS_PATH: ${QDS_CI_ARTIFACTS_PATH}/${QDS_CI_JOB_TARGET_ARCH}
     QDS_CI_JOB_ARTIFACTS_PATH_APP: ${QDS_CI_JOB_ARTIFACTS_PATH}/app
     QDS_CI_JOB_ARTIFACTS_PATH_TEST: ${QDS_CI_JOB_ARTIFACTS_PATH}/test
@@ -98,7 +98,7 @@ build-desktop:
   stage: build
   variables:
     QDS_CI_JOB_TARGET_ARCH: "gcc_64"
-    QDS_CI_JOB_BUILD_PATH: "${QDS_CI_CACHE_PATH}/${QDS_CI_JOB_TARGET_ARCH}/build"
+    QDS_CI_JOB_BUILD_PATH: "${CI_PROJECT_DIR}/${QDS_CI_JOB_TARGET_ARCH}/build"
     QDS_CI_JOB_ARTIFACTS_PATH: ${QDS_CI_ARTIFACTS_PATH}/${QDS_CI_JOB_TARGET_ARCH}
   artifacts:
     name: qt_ui_viewer-${CI_JOB_ID}-qt${QDS_CI_QT_VERSION}-${QDS_CI_JOB_TARGET_ARCH}
@@ -122,3 +122,4 @@ build-desktop:
       -DBUILD_EXAMPLES=OFF
     - cat ${QDS_CI_JOB_BUILD_PATH}/src/dynamic_imports.qml
     - cmake --build ${QDS_CI_JOB_BUILD_PATH}
+    - cp -r ${QDS_CI_JOB_BUILD_PATH}/tests/qtuiviewer_test ${QDS_CI_JOB_ARTIFACTS_PATH}