I have overridden the standard Edit button with visual force in salesforce, When tryin to edit a record in salesforce it perfectly redirects to the detail page but when I try to replicate the same thing in lightning sticking to the visual force page only, it doesn't redirect to the record detail page.
Here is my Apex Controller :-
public PageReference getEditRedir(){
        system.debug('Entered into getEditRedir() of ' + DispatchRequestExtCnt.class);
        string retURLId= ApexPages.currentPage().getParameters().get('retURL');
            String recId = ApexPages.currentPage().getParameters().get('id');
            Request__c req = [select Id,Name,RecordType.Name,RecordType.Id from Request__c where Id=: recId ];
            
            String recName = req.RecordType.Name ;
            if(recName.contains('Plan Economics Review Request'))
            {
                pageRef = new PageReference('/apex/PlanEconomicsReviewNew');
            }else{
                pageRef = new PageReference('/' + req.id + '/e');
            } 
inputRecType = req.RecordType.Id;
            pageRef.getParameters().put('id', req.id);
            pageRef.getParameters().put('mode', 'edit');
            pageRef.getParameters().put('nooverride', '1');
            pageRef.getParameters().put('retURL', req.id);
            pageRef.getParameters().put('RecordType', inputRecType);
            pageRef.getParameters().put('ent', 'Request__c');
            pageRef.setRedirect(true);
            
            system.debug('Leaving from getEditRedir() of ' + DispatchRequestExtCnt.class);
            
        
        return pageRef;
    } 

Here is my VF Page code :- 

<apex:page standardController="Request__c" extensions="DispatchRequestExtCnt"
                               action="{!nullValue(editRedir.url, urlFor($Action.Request__c.Edit, Request__c.id, null, true))}">
    
</apex:page>

Please suggest a solution.