Merge branch 'develop' of github.com:matrix-org/matrix-react-sdk into t3chguy/fix/17365

 Conflicts:

	src/components/views/dialogs/InviteDialog.tsx

res/css/views/avatars/_DecoratedRoomAvatar.scss

@@ -16,6 +16,7 @@ limitations under the License.
 
 .mx_DecoratedRoomAvatar, .mx_ExtraTile {
     position: relative;
+    contain: content;
 
     &.mx_DecoratedRoomAvatar_cutout .mx_BaseAvatar {
         mask-image: url('$(res)/img/element-icons/roomlist/decorated-avatar-mask.svg');

res/css/views/rooms/_EventTile.scss

@@ -104,7 +104,7 @@ $left-gutter: 64px;
 .mx_EventTile_line, .mx_EventTile_reply {
     position: relative;
     padding-left: $left-gutter;
-    border-radius: 4px;
+    border-radius: 8px;
 }
 
 .mx_RoomView_timeline_rr_enabled,
@@ -280,6 +280,7 @@ $left-gutter: 64px;
     height: $font-14px;
     width: $font-14px;
 
+    will-change: left, top;
     transition:
         left var(--transition-short) ease-out,
         top var(--transition-standard) ease-out;

res/css/views/rooms/_IRCLayout.scss

@@ -115,8 +115,7 @@ $irc-line-height: $font-18px;
         .mx_EventTile_line {
             .mx_EventTile_e2eIcon,
             .mx_TextualEvent,
-            .mx_MTextBody,
-            .mx_ReplyThread_wrapper_empty {
+            .mx_MTextBody {
                 display: inline-block;
             }
         }
@@ -177,16 +176,13 @@ $irc-line-height: $font-18px;
     .mx_SenderProfile_hover {
         background-color: $primary-bg-color;
         overflow: hidden;
+        display: flex;
 
-        > span {
-            display: flex;
-
-            > .mx_SenderProfile_name {
-                overflow: hidden;
-                text-overflow: ellipsis;
-                min-width: var(--name-width);
-                text-align: end;
-            }
+        > .mx_SenderProfile_name {
+            overflow: hidden;
+            text-overflow: ellipsis;
+            min-width: var(--name-width);
+            text-align: end;
         }
     }
 

res/css/views/rooms/_JumpToBottomButton.scss

@@ -52,6 +52,7 @@ limitations under the License.
 
 .mx_JumpToBottomButton_scrollDown {
     position: relative;
+    display: block;
     height: 38px;
     border-radius: 19px;
     box-sizing: border-box;

res/css/views/rooms/_RoomBreadcrumbs.scss

@@ -32,14 +32,14 @@ limitations under the License.
     // first triggering the enter state with the newest breadcrumb off screen (-40px) then
     // sliding it into view.
     &.mx_RoomBreadcrumbs-enter {
-        margin-left: -40px; // 32px for the avatar, 8px for the margin
+        transform: translateX(-40px); // 32px for the avatar, 8px for the margin
     }
     &.mx_RoomBreadcrumbs-enter-active {
-        margin-left: 0;
+        transform: translateX(0);
 
         // Timing function is as-requested by design.
         // NOTE: The transition time MUST match the value passed to CSSTransition!
-        transition: margin-left 640ms cubic-bezier(0.66, 0.02, 0.36, 1);
+        transition: transform 640ms cubic-bezier(0.66, 0.02, 0.36, 1);
     }
 
     .mx_RoomBreadcrumbs_placeholder {

res/css/views/rooms/_RoomSublist.scss

@@ -61,6 +61,7 @@ limitations under the License.
             &.mx_RoomSublist_headerContainer_sticky {
                 position: fixed;
                 height: 32px; // to match the header container
+                // width set by JS because of a compat issue between Firefox and Chrome
                 width: calc(100% - 15px);
             }
 
@@ -197,6 +198,7 @@ limitations under the License.
             // as the box model should be top aligned. Happens in both FF and Chromium
             display: flex;
             flex-direction: column;
+            align-self: stretch;
 
             mask-image: linear-gradient(0deg, transparent, black 4px);
         }

res/css/views/rooms/_RoomTile.scss

@@ -19,6 +19,10 @@ limitations under the License.
     margin-bottom: 4px;
     padding: 4px;
 
+    contain: strict;
+    height: 40px;
+    box-sizing: border-box;
+
     // The tile is also a flexbox row itself
     display: flex;