Improve handling of server errors when loading the Record Page

[seancolsen]

The Record Page has a few places where we make API requests and don't adequately handle server errors:

• Here

  $: record = new RecordStore({ table, recordId });

  The RecordStore constructor calls RecordStore.fetch which fetches the record data. If this fails, then the page loads, giving the user the impression that all fields in the record are blank.

• Here

  $: tableStructure = new TableStructure({
    id: table.id,
    abstractTypesMap: $currentDbAbstractTypes.data,
  });

  The TableStructure constructor instantiates other stores which fetch data within their constructors.

• Here

  {#await getJoinableTablesResult(table.id)}
    <RecordPageLoadingSpinner />
  {:then joinableTablesResult}
    <Widgets {joinableTablesResult} {recordId} recordSummary={$summary} />
  {/await}

  The getJoinableTablesResult function might throw an error. We should handle this. We should also eliminate code duplication with the getJoinableTablesResult function in src/stores/tables.ts

[github-actions]

This issue has not been updated in 90 days and is being marked as stale.