fix: separate logo and hero icon

apps/core/models.py

@@ -33,7 +33,7 @@ class SiteBranding(models.Model):
         ],
         help_text=(
             "Icon shown in browser tabs and bookmarks. Use a square ICO, PNG, SVG, "
-            "JPG, or WebP file. Leave empty to use the default Radiuma icons."
+            "JPG, or WebP file. Leave empty to use the default Communication to Care icons."
         ),
     )
     hero_logo = models.ImageField(
@@ -48,7 +48,7 @@ class SiteBranding(models.Model):
     hero_logo_alt = models.CharField(
         max_length=200,
         blank=True,
-        default="Radiuma",
+        default="Communication to Care",
         help_text="Accessible description for the homepage hero logo.",
     )
     navbar_icon_size = models.PositiveSmallIntegerField(