Spreadsheets Example: Fix Installation and Deployment

After installing the example outside the build directory using
`cmake --install --prefix`, the installed application could not run
because the Spreadsheet subproject library was not found at runtime.

To fix this issue, the Spreadsheets subproject has been added as a
static library to the project. Now, it can be found in the installed
directory.

Fixes: QTBUG-127846
Pick-to: 6.8
Change-Id: I30968afa958ec6bda6017969de157e27550a7616
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

examples/quickcontrols/spreadsheets/CMakeLists.txt

@@ -6,7 +6,7 @@ project(SpreadsheetsExample VERSION 1.0 LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-find_package(Qt6 6.8 REQUIRED COMPONENTS Gui Qml)
+find_package(Qt6 6.8 REQUIRED COMPONENTS Core Gui Qml Quick)
 
 qt_standard_project_setup(REQUIRES 6.8)
 
@@ -17,9 +17,11 @@ qt_add_executable(${PROJECT_NAME} WIN32
 )
 
 target_link_libraries(${PROJECT_NAME} PRIVATE
+    Qt6::Core
     Qt6::Gui
     Qt6::Qml
-    Spreadsheets
+    Qt6::Quick
+    Spreadsheetsplugin
 )
 
 qt_add_resources(${PROJECT_NAME} "spareadsheet_icon"

examples/quickcontrols/spreadsheets/Spreadsheets/CMakeLists.txt

@@ -4,11 +4,11 @@
 cmake_minimum_required(VERSION 3.16)
 project(Spreadsheets LANGUAGES CXX)
 
-find_package(Qt6 6.8 REQUIRED COMPONENTS Core Quick Qml)
 qt_standard_project_setup(REQUIRES 6.8)
+qt_add_library(${PROJECT_NAME} STATIC)
 
 qt_add_qml_module(${PROJECT_NAME}
-    URI Spreadsheets
+    URI ${PROJECT_NAME}
     VERSION 1.0
     QML_FILES
         Main.qml