Fix various include paths.

PiperOrigin-RevId: 821564663
Change-Id: Ic84489b7f3e1ba97810f60049dcf2f4a4d31edcf

src/experimental/studio/app.cc

@@ -29,8 +29,8 @@
 #include <utility>
 #include <vector>
 
-#include <dear_imgui/imgui.h>
-#include <implot/implot.h>
+#include <imgui.h>
+#include <implot.h>
 #include <mujoco/mujoco.h>
 #include "experimental/toolbox/helpers.h"
 #include "experimental/toolbox/imgui_widgets.h"
@@ -42,7 +42,7 @@
 #if defined(USE_FILAMENT_OPENGL) || defined(USE_FILAMENT_VULKAN)
 #include "experimental/filament/render_context_filament.h"
 #elif defined(USE_CLASSIC_OPENGL)
-#include <dear_imgui/backends/imgui_impl_opengl3.h>
+#include <backends/imgui_impl_opengl3.h>
 #else
 #error No rendering mode defined.
 #endif

src/experimental/studio/main.cc

@@ -22,7 +22,7 @@
 #include <string_view>
 #include <vector>
 
-#include "third_party/absl/flags/flag.h"
+#include <absl/flags/flag.h>
 #include "experimental/studio/app.h"
 
 ABSL_FLAG(int, window_width, 1400, "Window width");