Fix layout issues on Android

mobile/src/Home/Home.js

@@ -186,7 +186,8 @@ export class Home extends React.Component {
             style={{ marginLeft: 10, marginRight: 5, tintColor: "gray" }}
           />
           <TextInput
-            style={{ flexGrow: 1, height: "100%" }}
+            style={{ flexGrow: 1, flexBasis: 0, height: "100%" }}
+            underlineColorAndroid="#F4F4F4"
             placeholder="Search"
           />
           <Icon