fix: Resolves "Add Domain" UI confusion.

Author: towfiqi

components/domains/AddDomain.tsx

@@ -36,7 +36,7 @@ const AddDomain = ({ closeModal, domains = [] }: AddDomainProps) => {
         }
       });
       if (invalidDomains.length > 0) {
-         setNewDomainError(`Please Insert Valid Domain URL. Invalid URLs: ${invalidDomains.join(', ')}`);
+         setNewDomainError(`Please Insert Valid Website URL. ${invalidDomains.length > 1 ? `Invalid URLs: ${invalidDomains.join(', ')}` : ''}`);
       } else if (domainsTobeAdded.length > 0) {
             console.log('domainsTobeAdded :', domainsTobeAdded);
          addMutate(domainsTobeAdded);
@@ -51,11 +51,11 @@ const AddDomain = ({ closeModal, domains = [] }: AddDomainProps) => {
    return (
       <Modal closeModal={() => { closeModal(false); }} title={'Add New Domain'}>
          <div data-testid="adddomain_modal">
-            <h4 className='text-sm mt-4'>Domain URL</h4>
+            <h4 className='text-sm mt-4 pb-2'>Website URL(s)</h4>
             <textarea
                className={`w-full h-40 border rounded border-gray-200 p-4 outline-none
                 focus:border-indigo-300 ${newDomainError ? ' border-red-400 focus:border-red-400' : ''}`}
-               placeholder="Type or Paste URLs here. Insert Each URL in a New line."
+               placeholder={'Type or Paste URLs here. Insert Each URL in a New line. eg: \nhttps://mysite.com/ \nhttps://anothersite.com/ '}
                value={newDomain}
                autoFocus={true}
                onChange={handleDomainInput}>