fix(org): show org logo for favicon and OG image (#713)

When no custom favicon is set, fall back to the organization logo on
public org-site pages instead of the default ClassroomIO icon.

For OG images, only apply the theme-color background behind the logo
when rendering initials; real logo images now render without the tint.

Co-authored-by: Cursor Agent <[email protected]>
Co-authored-by: Rotimi Best <[email protected]>

apps/dashboard/src/routes/+page.svelte

@@ -9,7 +9,6 @@
   import { Empty } from '@cio/ui/custom/empty';
   import { SimpleLogoNav } from '@cio/ui/custom/simple-logo-nav';
   import { buildOrgLandingPageProps, normalizeLandingPageSettings } from '$features/org/utils/landing-page';
-  import OrgSiteFavicon from '$features/app/org-site-favicon.svelte';
   import { basePath } from '$lib/utils/store/app';
   import { t } from '$lib/utils/functions/translations';
   import { user } from '$lib/utils/store/user';
@@ -65,7 +64,6 @@
 </svelte:head>
 
 {#if data.isOrgSite && data.org}
-  <OrgSiteFavicon org={data.org} />
   {#if data.ThemeComponent && landingPageProps}
     <svelte:component this={data.ThemeComponent} {...landingPageProps} />
   {/if}