fixes for wasm client

- ui_enum
- spdlog pthread
- url hostname from emscripten
- websocket ping pong not exposed on js
- version string in client
- cleanup the generation of the version string
- set fixed path for wasm ws

external/CMakeLists.txt

@@ -7,3 +7,15 @@ add_subdirectory(json)
 add_subdirectory(magic_enum)
 add_subdirectory(spdlog)
 add_subdirectory(qwt)
+
+if (EMSCRIPTEN)
+target_compile_options(spdlog
+    PRIVATE
+        -pthread
+)
+
+target_link_options(spdlog
+    PRIVATE
+        -pthread
+)
+endif()