Various improvements to the report UI (#7342)

* Also display replies in report modal

* Allow report modal to be up to 80% of viewport height

* Use narrow no-break space where needed in the French translation

app/javascript/styles/mastodon/components.scss

@@ -4033,7 +4033,7 @@ a.status-card {
 .report-modal__statuses {
   flex: 1 1 auto;
   min-height: 20vh;
-  max-height: 40vh;
+  max-height: 80vh;
   overflow-y: auto;
   overflow-x: hidden;