Merge branch 'improve-default-tos' into 'develop'

Improve default ToS

See merge request !1057

static/terms-of-service.html

 <h4>Terms of Service</h4>
 
-<p>This is a placeholder ToS.</p>
-
-<p>Edit <code>"/static/terms-of-service.html"</code> to make it fit the needs of your instance.</p>
-<br>
-<img src="/static/logo.png"/ style="display: block; margin: auto;">
+<p>This is a placeholder ToS. Edit <code>"/static/terms-of-service.html"</code> to make it fit the needs of your instance.</p>
+<img src="/static/logo.png" style="display: block; margin: auto; max-width: 100%; height: 50px; object-fit: contain;" />