[Bootstrap] Deep integrate ErrorHandler, also fix uncaught in Splash ThemeSync

src/bootstrap.js

@@ -1,4 +1,4 @@
-const { app } = require('electron');
+const { app, dialog } = require('electron');
 const { readFileSync } = require('fs');
 const { join } = require('path');
 
@@ -14,8 +14,17 @@ global.releaseChannel = buildInfo.releaseChannel;
 
 log('BuildInfo', buildInfo);
 
-const { fatal, handled, init: EHInit } = require('./errorHandler');
-EHInit();
+const fatal = e => {
+  log('Fatal', e);
+
+  dialog.showMessageBox({
+    type: 'error',
+    message: 'A fatal Javascript error occured',
+    detail: e?.stack ?? String(e)
+  }).then(() => app.quit());
+};
+// process.on('uncaughtException', fatal);
+
 
 const splash = require('./splash');
 
@@ -69,7 +78,7 @@ const startUpdate = async () => {
     inst.on('host-updated', () => autoStart.update(() => {}));
     inst.on('unhandled-exception', fatal);
     inst.on('InconsistentInstallerState', fatal);
-    inst.on('update-error', handled);
+    inst.on('update-error', console.error);
 
     require('./firstRun').do(inst);
   } else {

src/errorHandler.js

@@ -1,25 +0,0 @@
-const { app, dialog } = require("electron");
-
-exports.init = () => {
-  process.on('uncaughtException', err => {
-    const stack = err.stack ?? String(err);
-    console.warn(stack);
-
-    // dialog.showErrorBox('A JavaScript error occurred in the main process', message);
-  });
-};
-
-
-exports.fatal = (err) => {
-  log('ErrorHandler', 'Fatal:', err);
-
-  dialog.showMessageBox(null, {
-    type: 'error',
-    message: 'A fatal Javascript error occured',
-    detail: err?.stack ?? String(err)
-  }).then(() => app.quit());
-};
-
-exports.handled = (err) => {
-  log('ErrorHandler', 'Handled:', err);
-};

src/splash/index.js

@@ -85,7 +85,9 @@ const launchSplash = (startMin) => {
   if (process.platform !== 'darwin') win.on('closed', () => !launchedMainWindow && app.quit());
 
   wc.once('dom-ready', () => {
-    if (oaConfig.themeSync !== false) wc.insertCSS(JSON.parse(fs.readFileSync(join(paths.getUserData(), 'userDataCache.json'), 'utf8')).openasarSplashCSS);
+    if (oaConfig.themeSync !== false) try {
+      wc.insertCSS(JSON.parse(fs.readFileSync(join(paths.getUserData(), 'userDataCache.json'), 'utf8')).openasarSplashCSS);
+    } catch { }
 
     if (oaConfig.splashText === true) {
       const buildInfo = require('../utils/buildInfo.js');