fix: OIDC client logo gets removed if other properties get updated

frontend/src/lib/types/oidc.type.ts

@@ -10,7 +10,7 @@ export type OidcClient = {
 export type OidcClientCreate = Omit<OidcClient, 'id' | 'logoURL' | 'hasLogo'>;
 
 export type OidcClientCreateWithLogo = OidcClientCreate & {
-	logo: File | null;
+	logo: File | null | undefined;
 };
 
 export type AuthorizeResponse = {

frontend/src/routes/settings/admin/oidc-clients/[id]/+page.svelte

@@ -33,7 +33,10 @@
 	async function updateClient(updatedClient: OidcClientCreateWithLogo) {
 		let success = true;
 		const dataPromise = oidcService.updateClient(client.id, updatedClient);
-		const imagePromise = oidcService.updateClientLogo(client, updatedClient.logo);
+		const imagePromise =
+			updatedClient.logo !== undefined
+				? oidcService.updateClientLogo(client, updatedClient.logo)
+				: Promise.resolve();
 
 		client.isPublic = updatedClient.isPublic;
 

frontend/src/routes/settings/admin/oidc-clients/oidc-client-form.svelte

@@ -22,7 +22,7 @@
 	} = $props();
 
 	let isLoading = $state(false);
-	let logo = $state<File | null>(null);
+	let logo = $state<File | null | undefined>();
 	let logoDataURL: string | null = $state(
 		existingClient?.hasLogo ? `/api/oidc/clients/${existingClient!.id}/logo` : null
 	);
@@ -108,7 +108,7 @@
 					onchange={onLogoChange}
 				>
 					<Button variant="secondary">
-						{existingClient?.hasLogo ? 'Change Logo' : 'Upload Logo'}
+						{logoDataURL ? 'Change Logo' : 'Upload Logo'}
 					</Button>
 				</FileInput>
 				{#if logoDataURL}