[BUG]fix suggestion list cutoff issue

In this PR, we fixed the suggestion list cutoff in an easy way.
We replace 250px width to auto min-width to allow browser to
select a width for specific element.

However, we might have longer input that can't fit into the search.
We definitely need more feedbacks on the cutoff behavior.

Issue resolved:
#2555

Signed-off-by: Anan Zhuang <[email protected]>

src/plugins/data/public/ui/typeahead/_suggestion.scss

@@ -144,7 +144,7 @@ $osdTypeaheadTypes: (
   flex-grow: 0; /* 2 */
   flex-basis: auto; /* 2 */
   font-family: $euiCodeFontFamily;
-  width: 250px;
+  min-width: auto;
   overflow: hidden;
   text-overflow: ellipsis;
   padding: $euiSizeXS $euiSizeS;