fix missing ok statuses

src/app/editor/dungeon_editor.cc

@@ -197,6 +197,7 @@ absl::Status DungeonEditor::UpdateDungeonRoomView() {
     DrawTileSelector();
     ImGui::EndTable();
   }
+  return absl::OkStatus();
 }
 
 void DungeonEditor::DrawToolset() {

src/app/editor/modules/palette_editor.h

@@ -98,6 +98,7 @@ class PaletteEditor : public SharedROM {
       saved_palette_[n].z = color.rgb().z / 255;
       saved_palette_[n].w = 255;  // Alpha
     }
+    return absl::OkStatus();
   }
 
   absl::Status status_;

src/app/editor/overworld_editor.cc

@@ -359,6 +359,7 @@ absl::Status OverworldEditor::RefreshMapPalette() {
   RETURN_IF_ERROR(maps_bmp_[current_map_].ApplyPalette(
       *overworld_.mutable_overworld_map(current_map_)
            ->mutable_current_palette()));
+  return absl::OkStatus();
 }
 
 void OverworldEditor::RefreshMapProperties() {