Fix warnings for included third party

Minor addition to .gitignore

.gitignore

@@ -1,3 +1,4 @@
 build*/
 compile_commands.json
 .clangd/
+.cache/

src/raygui.cpp

@@ -1,6 +1,12 @@
-#pragma warning(push, 0)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wall"
+#pragma GCC diagnostic ignored "-Wextra"
+#pragma GCC diagnostic ignored "-Wpedantic"
+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
+#pragma GCC diagnostic ignored "-Wenum-compare"
+#pragma GCC diagnostic ignored "-Wunused-parameter"
 
 #define RAYGUI_IMPLEMENTATION
 #include <raygui.h>
 
-#pragma warning(pop)
+#pragma GCC diagnostic pop