Dont allow image overflow in comment form and timeline

app/assets/stylesheets/generic/timeline.scss

@@ -58,6 +58,10 @@
         padding: 10px 15px;
         margin-left: 60px;
 
+        img {
+          max-width: 100%;
+        }
+
         &:after {
           content: '';
           display: block;

app/assets/stylesheets/sections/note_form.scss

@@ -52,6 +52,10 @@
     }
   }
 
+  img {
+    max-width: 100%;
+  }
+
   .note_text {
     width: 100%;
   }