Update demo mode to remove references to beta

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/App.vue

@@ -9,34 +9,14 @@
         closable
         aria-close-label="Close"
       >
-        <p
-          v-html="
-            `${$t('This is a demonstration site to test the beta version of Mobilizon.')} ${$t(
-              '<b>Please do not use it in any real way.</b>'
-            )}`
-          "
-        />
         <p>
-          <span
-            v-html="
-              $t(
-                'Mobilizon is under development, we will add new features to this site during regular updates, until the release of <b>version 1 of the software in the fall of 2020</b>.'
-              )
-            "
-          />
-          <i18n
-            path="In the meantime, please consider that the software is not (yet) finished. More information {onBlog}."
-          >
-            <a
-              slot="onBlog"
-              :href="
-                $i18n.locale === 'fr'
-                  ? 'https://framablog.org/?p=18268'
-                  : 'https://framablog.org/?p=18299'
-              "
-              >{{ $t("on our blog") }}</a
-            >
-          </i18n>
+          {{ $t("This is a demonstration site to test Mobilizon.") }}
+          <b>{{ $t("Please do not use it in any real way.") }}</b>
+          {{
+            $t(
+              "This website isn't moderated and the data that you enter will be automatically destroyed every day at 00:01 (Paris timezone)."
+            )
+          }}
         </p>
       </b-message>
     </div>