Do not escape org name twice

If the entry is escaped, we'd need to mark every use of it in the
templates as `| safe` which is more dubious than not escaping the
database entry in the first place.

Fixes #6357

securedrop/journalist_app/admin.py

@@ -132,7 +132,7 @@ def update_org_name() -> Union[str, werkzeug.Response]:
         if form.validate_on_submit():
             try:
                 value = request.form["organization_name"]
-                InstanceConfig.set_organization_name(escape(value, quote=True))
+                InstanceConfig.set_organization_name(value)
                 flash(gettext("Preferences saved."), "org-name-success")
             except Exception:
                 flash(gettext("Failed to update organization name."), "org-name-error")