i need to create to page like this and i need to insert into a tab .can any one give a idea how to go through this

@RestResource(urlMapping='/getlogo/*')
Global with sharing class GetLogo {

    @HttpGet
    Global static String getCompanyLogo()
    {
        StaticResource sr = [SELECT Id, Body FROM StaticResource WHERE Name = 'DNOWLogo' LIMIT 1];
    String body = sr.Body.toString();
        return body;
    }
    
}

   global static SearchJSONclass doPost(String SearchValue,String SelectedCarrier,String ProNumber,String FromDate,String ToDate,String Offset)
    {
       
        String SearchText;
        if(!SearchValue.equals('') || !String.isEmpty(SearchValue))
        {
            SearchText = SearchValue;  
        }
        else
        {
            SearchText = 'SR';
        }
        

 i need to create to page like this and i need to insert into a tab .can any one give a idea how to go through this