fix: remove deprecated js calls

custom.d.ts

@@ -1,9 +1,9 @@
 declare var OC: {
     generateUrl(string, any?): string,
     PasswordConfirmation: any,
+    getCurrentUser(): {uid: string, displayName: string}
 };
 declare var oc_requesttoken: string;
-declare var oc_current_user: string;
 declare var JSXC: any;
 declare var OJSXC_CONFIG: {
     defaultLoginFormEnable: boolean,

ts/Bootstrap.ts

@@ -72,7 +72,7 @@ export default class Bootstrap {
       };
 
       if (this.jsxc.numberOfCachedAccounts === 0) {
-         if (oc_current_user) {
+         if (OC.getCurrentUser().uid) {
             this.jsxc.start();
          }
 

ts/CONST.ts

@@ -4,4 +4,4 @@ export const SERVER_TYPE = {
    MANAGED: 2
 };
 
-export const DEPENDENCIES = ['JSXC', 'oc_config', 'oc_appswebroots', 'OC'];
+export const DEPENDENCIES = ['JSXC', 'OC'];