blog: v5.1 release announcement (#2492)

* blog: v5.1 release announcement

* update post

* readme

* typo

* update text

* add images

* corrections

* corrections, readme

* linebreaks

* separators

website/src/_includes/blog_previews/20230328.html

@@ -9,4 +9,4 @@
     <li>SMP server monitoring: status bot and page</li>
 </ul>
 
-<p>Also, the app interface is now available in Chinese and Spanish - thanks our users!</p>
+<p>Also, the app interface is now available in Chinese and Spanish - thanks to our users!</p>

website/src/_includes/blog_previews/20230422.html

@@ -14,6 +14,6 @@
     <li>networking improvements</li>
 </ul>
 
-<p>Also, the app interface is now available in Polish - thanks our users.</p>
+<p>Also, the app interface is now available in Polish - thanks to our users.</p>
 
 <p>SimpleX Chat apps are now available in 10 languages!</p>

website/src/_includes/blog_previews/20230523.html

@@ -0,0 +1,18 @@
+<p>v5.1 is released:</p>
+
+<ul class="mb-[12px]">
+    <li>message reactions 🚀</li>
+    <li><p>improved messages:</p>
+        <ul>
+            <li>voice messages up to 5 minutes</li>
+            <li>custom time to disappear</li>
+            <li>message editing history</li>
+        </ul>
+    </li>
+    <li>new design and customizable themes you can share*!</li>
+    <li>self-destruct passcode</li>
+</ul>
+
+<p>Also, the app interface is now available in Japanese and Portuguese (Brazil)* - thanks to our users!</p>
+
+<p>* Android app only.</p>