[CMake] Renamed target from goundstation to skywardhub

.gitlab-ci.yml

CMakeLists.txt

deployment/linuxdeploy/skywardhub.desktop

src/application.qrc

src/assets/icons/SkywardHub.icns

src/assets/icons/SkywardHub.ico

src/assets/icons/SkywardHub.png

src/assets/icons/splitter_horizontal.png

src/assets/icons/splitter_vertical.png

src/assets/models/rocket.obj

src/assets/styles/global.qss

src/assets/styles/white-mode.qss

src/main.cpp