address review finding, adding class resizable_pane and height

Signed-off-by: Thomas Jäckle <thomas.jaeckle@beyonnex.io>

ui/modules/things/things.html

@@ -91,7 +91,7 @@ <h5 data-bs-toggle="collapse" data-bs-target="#collapseAttributes">Attributes <s
         id="badgeAttributeCount"></span></h5>
 <hr />
 <div class="collapse" id="collapseAttributes">
-    <div class="row">
+    <div class="row resizable_pane" style="height: 20vh;">
         <div class="col-md-7 resizable_flex_column" style="overflow-y:scroll;">
             <table class="table table-striped table-hover table-sm">
                 <thead>