UI: Make log table selectable

Bug: 180113196
Change-Id: I1ae355eba2f836c4506550b5a1fb649e93717dd8
diff --git a/ui/src/assets/details.scss b/ui/src/assets/details.scss
index 7fc38ba..802d0e6 100644
--- a/ui/src/assets/details.scss
+++ b/ui/src/assets/details.scss
@@ -364,6 +364,7 @@
   display: grid;
   grid-template-rows: auto 1fr;
   font-family: 'Roboto Condensed', sans-serif;
+  user-select: text;
 
   header {
     position: sticky;