refactor: simplify Qt5 translation generation

Remove unnecessary find_program call for lrelease in Qt5 build
configuration
Use direct lrelease command instead of QT_LRELEASE_EXECUTABLE variable
Remove redundant add_custom_target for translations since QM files are
already handled as dependencies
This simplifies the build configuration and avoids potential issues with
lrelease executable detection

Influence:
1. Verify Qt5 builds still generate translation files correctly
2. Test that language switching works properly in the application
3. Confirm build process completes without lrelease-related errors
4. Check that all translation files are properly included in the final
binary

refactor: 简化 Qt5 翻译生成流程

移除 Qt5 构建配置中不必要的 lrelease 程序查找调用
直接使用 lrelease 命令替代 QT_LRELEASE_EXECUTABLE 变量
移除冗余的 translations 自定义目标，因为 QM 文件已作为依赖项处理
这简化了构建配置并避免了 lrelease 可执行文件检测的潜在问题

Influence:
1. 验证 Qt5 构建仍能正确生成翻译文件
2. 测试应用程序中的语言切换功能正常工作
3. 确认构建过程不会出现 lrelease 相关错误
4. 检查所有翻译文件是否正确包含在最终二进制文件中

Author: Kakueeen

CMakeLists.txt

@@ -84,20 +84,18 @@ if (QT_VERSION_MAJOR MATCHES 6)
     )
 else()
     # Qt5 手动生成 QM 文件
-    find_program(QT_LRELEASE_EXECUTABLE NAMES lrelease-qt5 lrelease)
     set(QM_FILES)
     foreach(TS_FILE ${TS_FILES})
         get_filename_component(TS_FILE_NAME ${TS_FILE} NAME_WE)
         set(QM_FILE "${CMAKE_CURRENT_BINARY_DIR}/${TS_FILE_NAME}.qm")
         add_custom_command(
             OUTPUT ${QM_FILE}
-            COMMAND ${QT_LRELEASE_EXECUTABLE} -compress -nounfinished -removeidentical ${TS_FILE} -qm ${QM_FILE}
+            COMMAND lrelease ${TS_FILE} -qm ${QM_FILE}
             DEPENDS ${TS_FILE}
             COMMENT "Generating ${QM_FILE} from ${TS_FILE}"
         )
         list(APPEND QM_FILES ${QM_FILE})
     endforeach()
-    add_custom_target(translations ALL DEPENDS ${QM_FILES})
 endif()
 
 # 在文件开头部分添加自动 moc 处理