JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" type="text/css" href="//cdn.sencha.io/ext-4.1.0-gpl/resources/css/ext-all-debug.css"
/>

JavaScript

Ext.define("ResponseModel", {
    extend: 'Ext.data.Model',
    fields: [],
    
    hasMany: [{
        model: 'Sromain',
        name: 'sromain'
    }, {
        model: 'Branch',
        name: 'branches'
    }

    ]
});

Ext.define("Sromain", {
    extend: 'Ext.data.Model',
    fields: [
        'corporation',
        'dbName',
        'prijmyCelk',
        'nakladyCelk',
        'ziskCelk',
        'neuhrVydCelk',
        'neuhrPrijCelk',
        'dph'],
    belongsTo: 'ResponseModel'
});

Ext.define("Branch", {
    extend: 'Ext.data.Model',
    fields: [
        'branch_name',
        'branch_code',
        'strediskoprijmyCelk',
        'strediskonakladyCelk',
        'strediskoziskCelk',
        'strediskoneuhrVydCelk',
        'strediskoneuhrPrijCelk',
        'streddphCelk'],
    belongsTo: 'ResponseModel'
});


var data = 
{
    "success": "true",
    "data": {
        "sromain": [
            {
                "corporation": "DEV 1 s.r.o.",
                "dbName": "dev_1_s_r_o_",
                "prijmyCelk": "2 106,00 €",
                "nakladyCelk": "2 049,00 €",
                "ziskCelk": "57,00 €",
                "neuhrVydCelk": "2 106,00 €",
                "neuhrPrijCelk": "2 049,00 €",
                "dph": "9,52 €"
            }
        ],
        "branches": [
            {
                "branch_name": "Bratislava",
                "branch_code": "BA",
                "strediskoprijmyCelk": "180,00 €",
                "strediskonakladyCelk": "0,00 €",
                "strediskoziskCelk": "180,00 €",
                "strediskoneuhrVydCelk": "180,00 €",
                "strediskoneuhrPrijCelk": "0,00 €",
                "streddphCelk": "30,00 €"
            },
            {
                "branch_name": "Banská Bystrica",
                "branch_code": "BB",
                "strediskoprijmyCelk": "600,00 €",
                "strediskonakladyCelk": "0,00 €",
                "strediskoziskCelk": "600,00 €",
               ...