Add arrow to message bubbles and improve spacing (#2474)

* Add arrow to message bubbles and improve spacing

* make bubble message avatar smaller

* add bubble layout for event content

* adjust bubble arrow

* fix missing return statement for event content

* hide bubble for event content

* add new arrow to bubble message

* fix avatar username relative alignment

* fix types

* fix code block header background

* revert avatar size and make arrow less sharp

* show event messages timestamp to right when bubble is hidden

* fix avatar base css

* move message header outside bubble

* fix event time appears on left in hidden bubles

src/app/components/message/layout/Bubble.tsx

@@ -1,18 +1,63 @@
 import React, { ReactNode } from 'react';
-import { Box, as } from 'folds';
+import classNames from 'classnames';
+import { Box, ContainerColor, as, color } from 'folds';
 import * as css from './layout.css';
 
+type BubbleArrowProps = {
+  variant: ContainerColor;
+};
+function BubbleLeftArrow({ variant }: BubbleArrowProps) {
+  return (
+    <svg
+      className={css.BubbleLeftArrow}
+      width="9"
+      height="8"
+      viewBox="0 0 9 8"
+      fill="none"
+      xmlns="http://www.w3.org/2000/svg"
+    >
+      <path
+        fillRule="evenodd"
+        clipRule="evenodd"
+        d="M9.00004 8V0H4.82847C3.04666 0 2.15433 2.15428 3.41426 3.41421L8.00004 8H9.00004Z"
+        fill={color[variant].Container}
+      />
+    </svg>
+  );
+}
+
 type BubbleLayoutProps = {
+  hideBubble?: boolean;
   before?: ReactNode;
+  header?: ReactNode;
 };
 
-export const BubbleLayout = as<'div', BubbleLayoutProps>(({ before, children, ...props }, ref) => (
-  <Box gap="300" {...props} ref={ref}>
-    <Box className={css.BubbleBefore} shrink="No">
-      {before}
+export const BubbleLayout = as<'div', BubbleLayoutProps>(
+  ({ hideBubble, before, header, children, ...props }, ref) => (
+    <Box gap="300" {...props} ref={ref}>
+      <Box className={css.BubbleBefore} shrink="No">
+        {before}
+      </Box>
+      <Box grow="Yes" direction="Column">
+        {header}
+        {hideBubble ? (
+          children
+        ) : (
+          <Box>
+            <Box
+              className={
+                hideBubble
+                  ? undefined
+                  : classNames(css.BubbleContent, before ? css.BubbleContentArrowLeft : undefined)
+              }
+              direction="Column"
+            >
+              {before ? <BubbleLeftArrow variant="SurfaceVariant" /> : null}
+              {children}
+            </Box>
+          </Box>
+        )}
+      </Box>
     </Box>
-    <Box className={css.BubbleContent} direction="Column">
-      {children}
-    </Box>
-  </Box>
-));
+  )
+);