replace with custom superagent based on fetch API

src/services.js

@@ -68,7 +68,7 @@ const addonConfigs = require('./addonconfigs.js'),
     settings = require('./settings.js'),
     sftp = require('./sftp.js'),
     shell = require('./shell.js')('services'),
-    superagent = require('superagent');
+    superagent = require('./superagent.js');
 
 const NOOP = async function (/*app, options*/) {};
 const RMADDONDIR_CMD = path.join(__dirname, 'scripts/rmaddondir.sh');
@@ -334,7 +334,7 @@ async function containerStatus(containerName, tokenEnvName) {
         .ok(() => true));
 
     if (networkError) return { status: exports.SERVICE_STATUS_STARTING, error: `Error waiting for ${containerName}: ${networkError.message}` };
-    if (response.status !== 200 || !response.body.status) return { status: exports.SERVICE_STATUS_STARTING, error: `Error waiting for ${containerName}. Status code: ${response.statusCode} message: ${response.body.message}` };
+    if (response.status !== 200 || !response.body.status) return { status: exports.SERVICE_STATUS_STARTING, error: `Error waiting for ${containerName}. Status code: ${response.status} message: ${response.body.message}` };
 
     const result = await docker.memoryUsage(containerName);
     const stats = result.memory_stats || { usage: 0, limit: 1 };