Specify PUBLIC for the link targets to make them visible to windeployqt

I went full steam on making it all public which is not really required,
it's only really QtWebSockets we're after. Could always be fine tuned
later on if this works as expected.

Signed-off-by: Kevin Ottens <kevin.ottens@nextcloud.com>

src/libsync/CMakeLists.txt

@@ -119,24 +119,29 @@ ENDIF(NOT APPLE)
 
 find_package(Qt5 REQUIRED COMPONENTS WebSockets)
 add_library(${synclib_NAME} SHARED ${libsync_SRCS})
-target_link_libraries(${synclib_NAME}
+target_link_libraries(${synclib_NAME} PUBLIC
     "${csync_NAME}"
     OpenSSL::Crypto
     OpenSSL::SSL
-    ${OS_SPECIFIC_LINK_LIBRARIES}
-    Qt5::Core Qt5::Network
+    Qt5::Core
+    Qt5::Network
     Qt5::WebSockets
+    ${OS_SPECIFIC_LINK_LIBRARIES}
 )
 
 if (NOT TOKEN_AUTH_ONLY)
     find_package(Qt5 REQUIRED COMPONENTS Widgets Svg)
-    target_link_libraries(${synclib_NAME} Qt5::Widgets Qt5::Svg qt5keychain)
+    target_link_libraries(${synclib_NAME} PUBLIC
+        Qt5::Widgets
+        Qt5::Svg
+        qt5keychain
+    )
 endif()
 
 if(INOTIFY_FOUND)
     target_include_directories(${synclib_NAME} PRIVATE ${INOTIFY_INCLUDE_DIR})
     link_directories(${INOTIFY_LIBRARY_DIR})
-    target_link_libraries(${synclib_NAME} ${INOTIFY_LIBRARY} )
+    target_link_libraries(${synclib_NAME} PUBLIC ${INOTIFY_LIBRARY})
 endif()
 
 GENERATE_EXPORT_HEADER( ${synclib_NAME}