frontend: Migrate to eslint-plugin-svelte 3.0

This includes a migration to a flat eslint.config.js, which will now
also automatically ignore items from .gitignore. eslint-plugin-svelte
3.0 comes with a couple of changes to recommended rules as well, these
are also addressed in this commit.

1 files changed, 2 insertions, 0 deletions

diff --git a/frontend/src/gql/Utils.ts b/frontend/src/gql/Utils.ts
index 177dff0..6fedd05 100644
--- a/frontend/src/gql/Utils.ts
+++ b/frontend/src/gql/Utils.ts
@@ -19,6 +19,7 @@ export function omitIdentifiers<T extends { __typename?: unknown; id: number }>(
 	return omit(obj, '__typename', 'id');
 }
 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
 export function isSuccess(object: any): object is gql.Success {
 	if (object.__typename === undefined) {
 		return false;
@@ -27,6 +28,7 @@ export function isSuccess(object: any): object is gql.Success {
 	return object.__typename.endsWith('Success') && (object as gql.Success).message !== undefined;
 }
 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
 export function isError(object: any): object is gql.Error {
 	if (object.__typename === undefined) {
 		return false;