Fix more search results CSS rules

Author: GuillaumeGomez

src/librustdoc/html/static/themes/ayu.css

@@ -565,10 +565,10 @@ kbd {
 	background-color: rgba(70, 70, 70, 0.33);
 }
 
-.search-results td span.alias {
+.search-results .result-name span.alias {
 	color: #c5c5c5;
 }
-.search-results td span.grey {
+.search-results .result-name span.grey {
 	color: #999;
 }
 

src/librustdoc/html/static/themes/dark.css

@@ -444,10 +444,10 @@ kbd {
 	background-color: #606060;
 }
 
-.search-results td span.alias {
+.search-results .result-name span.alias {
 	color: #fff;
 }
-.search-results td span.grey {
+.search-results .result-name span.grey {
 	color: #ccc;
 }
 

src/librustdoc/html/static/themes/light.css

@@ -435,10 +435,10 @@ kbd {
 	background-color: #f9f9f9;
 }
 
-.search-results td span.alias {
+.search-results .result-name span.alias {
 	color: #000;
 }
-.search-results td span.grey {
+.search-results .result-name span.grey {
 	color: #999;
 }