Limit height of pictures in summaries (thread list)

Fixed: twpowertools:106
Change-Id: I975089912603e13748c3b6eff28f29dc0fea3fa6
diff --git a/src/static/css/image_max_height.css b/src/static/css/image_max_height.css
index 2463945..66494b9 100644
--- a/src/static/css/image_max_height.css
+++ b/src/static/css/image_max_height.css
@@ -1,5 +1,6 @@
 ec-question .body img,
     ec-message .body img,
+    ec-thread-summary .main .content .body img,
     .scTailwindThreadPostcontentroot img {
   /* "Max height = full height - 2 * height of the header" */
   max-height: calc(100vh - 2*64px);