Réparation de l'autoplay d'iframe (pb w3c), simplification (#775)

layouts/partials/blocks/templates/video/dailymotion.html

-<iframe data-unloaded-src="{{ .embed_with_defaults }}" title="{{ .title }}" autoplay="true" allow="autoplay; fullscreen"></iframe>
\ No newline at end of file

layouts/partials/blocks/templates/video/lazy-container.html

@@ -7,5 +7,8 @@
   {{ end }}
 </div>
 <div class="video-container">
-  {{ partial (printf "blocks/templates/video/%s" .platform) . }}
+  <iframe data-unloaded-src="{{ .embed_with_defaults }}"
+          title="{{ .title }}"
+          allowfullscreen
+          allow="autoplay; fullscreen"></iframe>
 </div>
\ No newline at end of file

layouts/partials/blocks/templates/video/peertube.html

-<iframe data-unloaded-src="{{ .embed_with_defaults }}" title="{{ .title }}" allow="autoplay; fullscreen"></iframe>

layouts/partials/blocks/templates/video/vimeo.html

-<iframe data-unloaded-src="{{ .embed_with_defaults }}" title="{{ .title }}" allow="autoplay; fullscreen"></iframe>

layouts/partials/blocks/templates/video/youtube.html

-<iframe data-unloaded-src="{{ .embed_with_defaults }}" title="{{ .title }}" allowfullscreen allow="autoplay"></iframe>
\ No newline at end of file