change display of seach bar and button home page

frontend/src/views/home/home.html

@@ -13,7 +13,7 @@
           <v-card class="blue-grey lighten-5">
             <v-card-text>
               <v-container class="pa-0 text-xs-justify">
-                <v-layout>
+                <v-layout justify-space-around>
                   <v-flex md10>
                     <v-text-field
                       label="Enter gene ID to visit page"
@@ -24,7 +24,7 @@
                       v-on:keyup.enter.native="goToGeneDetail"
                     ></v-text-field>
                   </v-flex>
-                  <v-flex md1 class="ml-3">
+                  <v-flex md1>
                     <v-btn
                       :to="/gene-detail/ + geneIdLower"
                       small fab