fix: default light theme splash 🔧 (#5660)

Co-authored-by: dwelle <luzar.david@gmail.com>
Co-authored-by: Aakansha Doshi <aakansha1216@gmail.com>

src/components/LayerUI.tsx

@@ -53,7 +53,6 @@ interface LayerUIProps {
   onPenModeToggle: () => void;
   onInsertElements: (elements: readonly NonDeletedExcalidrawElement[]) => void;
   showExitZenModeBtn: boolean;
-  showThemeBtn: boolean;
   langCode: Language["code"];
   isCollaborating: boolean;
   renderTopRightUI?: ExcalidrawProps["renderTopRightUI"];
@@ -78,7 +77,6 @@ const LayerUI = ({
   onPenModeToggle,
   onInsertElements,
   showExitZenModeBtn,
-  showThemeBtn,
   isCollaborating,
   renderTopRightUI,
   renderCustomFooter,
@@ -209,12 +207,7 @@ const LayerUI = ({
               />
             )}
           </Stack.Row>
-          <BackgroundPickerAndDarkModeToggle
-            appState={appState}
-            actionManager={actionManager}
-            setAppState={setAppState}
-            showThemeBtn={showThemeBtn}
-          />
+          <BackgroundPickerAndDarkModeToggle actionManager={actionManager} />
           {appState.fileHandle && (
             <>{actionManager.renderAction("saveToActiveFile")}</>
           )}
@@ -424,7 +417,6 @@ const LayerUI = ({
           canvas={canvas}
           isCollaborating={isCollaborating}
           renderCustomFooter={renderCustomFooter}
-          showThemeBtn={showThemeBtn}
           onImageAction={onImageAction}
           renderTopRightUI={renderTopRightUI}
           renderCustomStats={renderCustomStats}