chore: sync module from working instance and add install guide

widgets/RescueInfoSidebar.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace humhub\modules\space_profiles\widgets;
+
+use humhub\components\Widget;
+use humhub\modules\space\models\Space;
+use humhub\modules\space_profiles\models\SpaceProfile;
+
+class RescueInfoSidebar extends Widget
+{
+    public Space $space;
+
+    public function run()
+    {
+        $profile = SpaceProfile::findOne(['contentcontainer_id' => $this->space->contentcontainer_id]);
+
+        $spaceDescription = trim((string)$this->space->about);
+        if ($spaceDescription === '') {
+            $spaceDescription = trim((string)$this->space->description);
+        }
+        if ($spaceDescription === '') {
+            $spaceDescription = trim((string)($profile?->description ?? ''));
+        }
+
+        return $this->render('rescueInfoSidebar', [
+            'space' => $this->space,
+            'profile' => $profile,
+            'spaceDescription' => $spaceDescription,
+        ]);
+    }
+}