Add code to detect a system library for zxcvbn, with fallback to the embedded one in case it is not found

src/cli/CMakeLists.txt

@@ -38,7 +38,7 @@ target_link_libraries(keepassxc-cli
                       ${GCRYPT_LIBRARIES}
                       ${GPGERROR_LIBRARIES}
                       ${ZLIB_LIBRARIES}
-                      zxcvbn)
+                      ${ZXCVBN_FOUND})
 
 install(TARGETS keepassxc-cli
         BUNDLE DESTINATION . COMPONENT Runtime

src/cli/EntropyMeter.cpp

@@ -20,7 +20,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
-#include "zxcvbn/zxcvbn.h"
+#include <zxcvbn.h>
 
 /* For pre-compiled headers under windows */
 #ifdef _WIN32