app: update application name

Change-Id: I28b4322f547b0f87468406a3647571e4e3149ebf

jami-android/app/src/main/res/values/strings.xml

@@ -19,7 +19,7 @@ along with this program; if not, write to the Free Software
     <!-- About -->
     <string name="app_name" translatable="false">Jami</string>
     <string name="app_author" translatable="false">Savoir-faire Linux Inc.</string>
-    <string name="app_release" translatable="false">Világfa - %1$s</string>
+    <string name="app_release" translatable="false">Eleutheria - %1$s</string>
     <string name="app_website" translatable="false">https://jami.net</string>
     <string name="app_website_contribute" translatable="false"><u>https://jami.net/contribute</u></string>
     <string name="gnu_license_website" translatable="false">https://www.gnu.org/licenses/gpl.html</string>