Remove invalid modules loading spinner in contract deploy page (#5379)

## Problem solved

Short description of the bug fixed or feature added

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---

## PR-Codex overview
This PR focuses on simplifying the conditional rendering of the `ModularContractDefaultModulesFieldset` component by removing unnecessary nested ternary operators and improving code readability.

### Detailed summary
- Removed nested ternary operator for rendering `ModularContractDefaultModulesFieldset`.
- Simplified the condition to check if `modules` exists and has length greater than 0.
- Streamlined the rendering logic for better readability.

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Author: MananTank

apps/dashboard/src/components/contract-components/contract-deploy-form/custom-contract.tsx

@@ -1,6 +1,4 @@
 "use client";
-
-import { Spinner } from "@/components/ui/Spinner/Spinner";
 import { Alert, AlertTitle } from "@/components/ui/alert";
 import { Button } from "@/components/ui/button";
 import { Checkbox, CheckboxWithLabel } from "@/components/ui/checkbox";
@@ -765,18 +763,13 @@ export const CustomContractForm: React.FC<CustomContractFormProps> = ({
                   );
                 })}
 
-              {isModular &&
-                (modules?.length ? (
-                  <ModularContractDefaultModulesFieldset
-                    form={form}
-                    modules={modules}
-                    isTWPublisher={isTWPublisher}
-                  />
-                ) : (
-                  <div className="flex min-h-[250px] items-center justify-center">
-                    <Spinner className="size-8" />
-                  </div>
-                ))}
+              {isModular && modules && modules.length > 0 && (
+                <ModularContractDefaultModulesFieldset
+                  form={form}
+                  modules={modules}
+                  isTWPublisher={isTWPublisher}
+                />
+              )}
 
               {advancedParams.length > 0 && (
                 <Accordion allowToggle>