fix: replace first and last name with single field (#4915)

web/src/routes/(user)/partners/[userId]/+page.svelte

@@ -39,8 +39,7 @@
     <ControlAppBar showBackButton backIcon={mdiArrowLeft} on:close-button-click={() => goto(AppRoute.SHARING)}>
       <svelte:fragment slot="leading">
         <p class="whitespace-nowrap text-immich-fg dark:text-immich-dark-fg">
-          {data.partner.firstName}
-          {data.partner.lastName}'s photos
+          {data.partner.name}'s photos
         </p>
       </svelte:fragment>
     </ControlAppBar>

web/src/routes/(user)/sharing/+page.svelte

@@ -72,8 +72,7 @@
               <UserAvatar user={partner} size="lg" autoColor />
               <div class="text-left">
                 <p class="text-immich-fg dark:text-immich-dark-fg">
-                  {partner.firstName}
-                  {partner.lastName}
+                  {partner.name}
                 </p>
                 <p class="text-xs text-immich-fg/75 dark:text-immich-dark-fg/75">
                   {partner.email}