electron-main: Fix some lint issues.

src/electron-main.js

@@ -505,17 +505,17 @@ ipcMain.on('seshat', async function(ev, payload) {
             break;
 
         case 'initEventIndex':
+            if (eventIndex === null) {
                 const userId = args[0];
                 const deviceId = args[1];
+                const passphraseKey = `seshat|${userId}|${deviceId}`;
 
-            if (eventIndex === null) {
                 let changePassphrase = false;
                 let passphrase = seshatDefaultPassphrase;
 
                 if (keytar) {
                     try {
                         // Try to get a passphrase for seshat.
-                        const passphraseKey = `seshat|${userId}|${deviceId}`;
                         const storedPassphrase = await keytar.getPassword("element.io", passphraseKey);
 
                         // If no passphrase was found mark that we should change
@@ -564,7 +564,7 @@ ipcMain.on('seshat', async function(ev, payload) {
                             throw (e);
                         }
                     }
-                }
+                };
 
                 try {
                     eventIndex = await openSeshat();