Try manually copying libjack.so.0 into AppImage to solve qt plugin error

appimage.sh

@@ -91,7 +91,7 @@ RESULT=$?
 # copy Soapy modules into their expected path in the AppDir
 cp -R "$PREFIX"/lib/SoapySDR ./AppDir/usr/lib/SoapySDR
 
-# copy blacklisted libraries that we really need because of library dependence
+# copy excluded libraries that we really need because of library dependence
 # on newer versions
 cp "$PREFIX"/lib/libexpat.so.1 ./AppDir/usr/lib/
 cp "$PREFIX"/lib/libfontconfig.so.1 ./AppDir/usr/lib/
@@ -100,6 +100,7 @@ cp "$PREFIX"/lib/libgcc_s.so.1 ./AppDir/usr/lib/
 cp "$PREFIX"/lib/libgmp.so.10 ./AppDir/usr/lib/
 cp "$PREFIX"/lib/libgpg-error.so.0 ./AppDir/usr/lib/
 cp "$PREFIX"/lib/libharfbuzz.so.0 ./AppDir/usr/lib/
+cp "$PREFIX"/lib/libjack.so.0 ./AppDir/usr/lib/
 cp "$PREFIX"/lib/libstdc++.so.6 ./AppDir/usr/lib/
 cp "$PREFIX"/lib/libusb-1.0.so.0 ./AppDir/usr/lib/
 cp "$PREFIX"/lib/libuuid.so.1 ./AppDir/usr/lib/