Disable on hover css rules when not clickable summary chip

Not clickable summery chips are used in comments chips in file list.

Release-Notes: skip
Google-Bug-Id: b/187487742
Change-Id: I3b27fb79bd3ed31be3f6504fada33b71923611a0
diff --git a/polygerrit-ui/app/elements/change/gr-change-summary/gr-summary-chip.ts b/polygerrit-ui/app/elements/change/gr-change-summary/gr-summary-chip.ts
index 146ab61..5588f40 100644
--- a/polygerrit-ui/app/elements/change/gr-change-summary/gr-summary-chip.ts
+++ b/polygerrit-ui/app/elements/change/gr-change-summary/gr-summary-chip.ts
@@ -66,7 +66,7 @@
           border-color: var(--info-foreground);
           background: var(--info-background);
         }
-        .summaryChip.info:hover {
+        button.summaryChip.info:hover {
           background: var(--info-background-hover);
           box-shadow: var(--elevation-level-1);
         }
@@ -80,7 +80,7 @@
           border-color: var(--warning-foreground);
           background: var(--warning-background);
         }
-        .summaryChip.warning:hover {
+        button.summaryChip.warning:hover {
           background: var(--warning-background-hover);
           box-shadow: var(--elevation-level-1);
         }
@@ -94,7 +94,7 @@
           border-color: var(--gray-foreground);
           background: var(--gray-background);
         }
-        .summaryChip.check:hover {
+        button.summaryChip.check:hover {
           background: var(--gray-background-hover);
           box-shadow: var(--elevation-level-1);
         }