Canvas: Fix messages and details scrolling issues

Change-Id: Id7831f65b7e692c611228d5937412500c3beae21
diff --git a/apps/canvas/front/src/App.css b/apps/canvas/front/src/App.css
index 31745d5..4444564 100644
--- a/apps/canvas/front/src/App.css
+++ b/apps/canvas/front/src/App.css
@@ -5,3 +5,7 @@
 .react-flow__handle.valid {
 	background: #55dd99;
 }
+
+body {
+	overflow: hidden;
+}
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