title: CMake cannot find Qt5Widgets on Linux Mint
body: <p>Trying to install deepin-screenshot on Linux Mint 21 Vanessa</p>
  <p>Got stuck at this error:</p>
  <pre><code>CMake Error at CMakeLists.txt:94 (find_package):
    By not providing &quot;FindQt5Widgets.cmake&quot; in CMAKE_MODULE_PATH this project
    has asked CMake to find a package configuration file provided by
    &quot;Qt5Widgets&quot;, but CMake did not find one.
  
    Could not find a package configuration file provided by &quot;Qt5Widgets&quot; with
    any of the following names:
  
      Qt5WidgetsConfig.cmake
      qt5widgets-config.cmake
  
    Add the installation prefix of &quot;Qt5Widgets&quot; to CMAKE_PREFIX_PATH or set
    &quot;Qt5Widgets_DIR&quot; to a directory containing one of the above files.  If
    &quot;Qt5Widgets&quot; provides a separate development package or SDK, be sure it has
    been installed.
  </code></pre>
  <p>Have seen other questions about windows installs, but nothing that deals with Ubuntu / Mint. Looks like there isn't a package I can install, except with RPMs (e.g. red hat / suse). Any ideas?</p>