fix(tab-android): blurry font icons (#81)

Author: manoldonev

packages/template-tab-navigation-ts/app/_app-common.scss

@@ -4,6 +4,11 @@
 .fa {
    font-family: "FontAwesome";
 }
+
+.t-36 {
+    font-size: 36;
+}
+
 // Common page class
 .page-content {
     .page-placeholder {

packages/template-tab-navigation-ts/app/app-root.xml

@@ -25,15 +25,15 @@ https://docs.nativescript.org/angular/ui/ng-ui-widgets/tabs.
                 will "adopt"; any other layout elements you try to specify will be ignored
             -->
             <Label text="Home" />
-            <Image src="font://&#xf015;" class="fa" />
+            <Image src="font://&#xf015;" class="fa t-36" />
         </TabStripItem>
         <TabStripItem>
             <Label text="Browse" />
-            <Image src="font://&#xf1ea;" class="fa" />
+            <Image src="font://&#xf1ea;" class="fa t-36" />
         </TabStripItem>
         <TabStripItem>
             <Label text="Search" />
-            <Image src="font://&#xf002;" class="fa" />
+            <Image src="font://&#xf002;" class="fa t-36" />
         </TabStripItem>
     </TabStrip>