add "split segment" to menu

public/menu.js

@@ -264,6 +264,12 @@ module.exports = ({ app, mainWindow, newVersion, isStoreBuild }) => {
             mainWindow.webContents.send('combineSelectedSegments');
           },
         },
+        {
+          label: esc(t('Split segment at cursor')),
+          click() {
+            mainWindow.webContents.send('splitCurrentSegment');
+          },
+        },
         {
           label: esc(t('Invert all segments on timeline')),
           click() {

src/App.jsx

@@ -2196,6 +2196,7 @@ const App = memo(() => {
       fillSegmentsGaps,
       combineOverlappingSegments,
       combineSelectedSegments,
+      splitCurrentSegment,
       fixInvalidDuration: tryFixInvalidDuration,
       reorderSegsByStartTime,
       concatCurrentBatch,
@@ -2220,7 +2221,7 @@ const App = memo(() => {
 
     actionsWithCatch.forEach(([key, action]) => electron.ipcRenderer.on(key, action));
     return () => actionsWithCatch.forEach(([key, action]) => electron.ipcRenderer.removeListener(key, action));
-  }, [alignSegmentTimesToKeyframes, apparentCutSegments, askSetStartTimeOffset, checkFileOpened, clearSegments, closeBatch, closeFileWithConfirm, combineOverlappingSegments, combineSelectedSegments, concatCurrentBatch, createFixedDurationSegments, createNumSegments, createRandomSegments, createSegmentsFromKeyframes, customOutDir, cutSegments, detectBlackScenes, detectSceneChanges, detectSilentScenes, detectedFps, extractAllStreams, fileFormat, filePath, fillSegmentsGaps, getFrameCount, getKeyboardAction, handleShowStreamsSelectorClick, invertAllSegments, loadCutSegments, loadMedia, openFilesDialog, openSendReportDialogWithState, reorderSegsByStartTime, selectedSegments, setWorking, shiftAllSegmentTimes, shuffleSegments, toggleKeyboardShortcuts, toggleLastCommands, toggleSettings, tryFixInvalidDuration, userHtml5ifyCurrentFile, userOpenFiles]);
+  }, [alignSegmentTimesToKeyframes, apparentCutSegments, askSetStartTimeOffset, checkFileOpened, clearSegments, closeBatch, closeFileWithConfirm, combineOverlappingSegments, combineSelectedSegments, concatCurrentBatch, createFixedDurationSegments, createNumSegments, createRandomSegments, createSegmentsFromKeyframes, customOutDir, cutSegments, detectBlackScenes, detectSceneChanges, detectSilentScenes, detectedFps, extractAllStreams, fileFormat, filePath, fillSegmentsGaps, getFrameCount, getKeyboardAction, handleShowStreamsSelectorClick, invertAllSegments, loadCutSegments, loadMedia, openFilesDialog, openSendReportDialogWithState, reorderSegsByStartTime, selectedSegments, setWorking, shiftAllSegmentTimes, shuffleSegments, splitCurrentSegment, toggleKeyboardShortcuts, toggleLastCommands, toggleSettings, tryFixInvalidDuration, userHtml5ifyCurrentFile, userOpenFiles]);
 
   const showAddStreamSourceDialog = useCallback(async () => {
     try {