feat(docs): Improve footer on newsletter

Author: rstoenescu

docs/src/components/DocPage.vue

@@ -66,11 +66,11 @@ q-page.doc-page
         q-icon(name="fas fa-comments")
 
       a(href="https://donate.quasar.dev", target="_blank")
-        q-icon(name="fas fa-heart")
+        q-icon(name="fas fa-medkit")
 
-      a(href="/newsletter")
-        q-icon(name="email")
-    div
+    div.q-mt-md
+      | Please subscribe to our <doc-link to="/newsletter">Newsletter</doc-link> to stay updated.
+    div.q-mt-md
       | Released under the <doc-link to="https://github.com/quasarframework/quasar/blob/dev/LICENSE">MIT LICENSE</doc-link> | <doc-link to="https://www.iubenda.com/privacy-policy/40685560">Privacy Policy</doc-link>
 
     div Copyright © 2015 - {{ year }} PULSARDEV SRL, Razvan Stoenescu

docs/src/pages/Landing.vue

@@ -176,12 +176,11 @@
           q-icon(name="fas fa-comments")
 
         a(href="https://donate.quasar.dev", target="_blank")
-          q-icon(name="fas fa-heart")
-
-        a(href="/newsletter")
-          q-icon(name="email")
+          q-icon(name="fas fa-medkit")
 
       div.q-mt-md
+        | Subscribe to our <doc-link to="/newsletter">Newsletter</doc-link>.
+      div.q-mt-sm
         | Released under the <doc-link to="https://github.com/quasarframework/quasar/blob/dev/LICENSE">MIT LICENSE</doc-link> | <doc-link to="https://www.iubenda.com/privacy-policy/40685560">Privacy Policy</doc-link>
 
       div Copyright © 2015 - {{ year }} PULSARDEV SRL, Razvan Stoenescu