Add ic_hashtag_white_24dp.xml

rocket-chat-android-widgets/src/main/res/drawable/ic_hashtag_white_24dp.xml

+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M20.037,10.206 L17.1666,10.206 L17.1666,13.7939 L20.037,13.7939 L20.037,17.3819
+            L17.1666,17.3819 L17.1666,20.3719 L13.7222,20.3719 L13.7222,17.3819
+            L10.2778,17.3819 L10.2778,20.3719 L6.83342,20.3719 L6.83342,17.3819
+            L3.96302,17.3819 L3.96302,13.794 L6.83335,13.794 L6.83335,10.2061
+            L3.96302,10.2061 L3.96302,6.61814 L6.83335,6.61814 L6.83335,3.62815
+            L10.2778,3.62815 L10.2778,6.61808 L13.7222,6.61808 L13.7222,3.62815
+            L17.1666,3.62815 L17.1666,6.61808 L20.037,6.61808 L20.037,10.206 Z
+            M10.5639,10.2034 L10.5639,13.7966 L13.4361,13.7966 L13.4361,10.2034
+            L10.5639,10.2034 Z" />
+</vector>
\ No newline at end of file