moved instanceName to index.ejs

src/routes/index.js

@@ -3,11 +3,13 @@
 const sourceIdService = require('../services/source_id');
 const sql = require('../services/sql');
 const labelService = require('../services/labels');
+const config = require('../services/config');
 
 async function index(req, res) {
     res.render('index', {
         sourceId: await sourceIdService.generateSourceId(),
         maxSyncIdAtLoad: await sql.getValue("SELECT MAX(id) FROM sync"),
+        instanceName: config.General ? config.General.instanceName : null,
         appCss: await getAppCss()
     });
 }