[🐴] add emoji multiplier prop to RichText and bump it up for DMs (#4229)

* add emoji multiplier prop to RichText and bump it up for DMs

* remove background if only emoji

* Handle more emoji

* Adjust emoji regex and length

* Fix bad merge conflict res

* Fix logic

* Revert to emoji specific regex

---------

Co-authored-by: Eric Bailey <[e-mail]>

src/components/RichText.tsx

···
   authorHandle,
   onLinkPress,
   interactiveStyle,
+  emojiMultiplier = 1.85,
 }: TextStyleProp &
   Pick<TextProps, 'selectable'> & {
     value: RichTextAPI | string
···
     authorHandle?: string
     onLinkPress?: LinkProps['onPress']
     interactiveStyle?: TextStyle
+    emojiMultiplier?: number
   }) {
   const richText = React.useMemo(
     () =>
···
   const {text, facets} = richText
 
   if (!facets?.length) {
-    if (text.length <= 5 && /^\p{Extended_Pictographic}+$/u.test(text)) {
+    if (isOnlyEmoji(text)) {
+      const fontSize =
+        (flattenedStyle.fontSize ?? a.text_sm.fontSize) * emojiMultiplier
       return (
         <Text
           selectable={selectable}
           testID={testID}
-          style={[
-            {
-              fontSize: 26,
-              lineHeight: 30,
-            },
-          ]}
+          style={[plainStyles, {fontSize}]}
           // @ts-ignore web only -prf
           dataSet={WORD_WRAP}>
           {text}
···
     </React.Fragment>
   )
 }
+
+export function isOnlyEmoji(text: string) {
+  return (
+    text.length <= 15 &&
+    /^[\p{Emoji_Presentation}\p{Extended_Pictographic}]+$/u.test(text)
+  )
+}

src/components/dms/MessageItem.tsx

···
 import {ActionsWrapper} from '#/components/dms/ActionsWrapper'
 import {InlineLinkText} from '#/components/Link'
 import {Text} from '#/components/Typography'
-import {RichText} from '../RichText'
+import {isOnlyEmoji, RichText} from '../RichText'
 import {MessageItemEmbed} from './MessageItemEmbed'
 
 let MessageItem = ({
···
         )}
         {rt.text.length > 0 && (
           <View
-            style={[
-              a.py_sm,
-              a.my_2xs,
-              a.rounded_md,
-              {
-                paddingLeft: 14,
-                paddingRight: 14,
-                backgroundColor: isFromSelf
-                  ? isPending
-                    ? pendingColor
-                    : t.palette.primary_500
-                  : t.palette.contrast_50,
-                borderRadius: 17,
-              },
-              isFromSelf ? a.self_end : a.self_start,
-              isFromSelf
-                ? {borderBottomRightRadius: isLastInGroup ? 2 : 17}
-                : {borderBottomLeftRadius: isLastInGroup ? 2 : 17},
-            ]}>
+            style={
+              !isOnlyEmoji(message.text) && [
+                a.py_sm,
+                a.my_2xs,
+                a.rounded_md,
+                {
+                  paddingLeft: 14,
+                  paddingRight: 14,
+                  backgroundColor: isFromSelf
+                    ? isPending
+                      ? pendingColor
+                      : t.palette.primary_500
+                    : t.palette.contrast_50,
+                  borderRadius: 17,
+                },
+                isFromSelf ? a.self_end : a.self_start,
+                isFromSelf
+                  ? {borderBottomRightRadius: isLastInGroup ? 2 : 17}
+                  : {borderBottomLeftRadius: isLastInGroup ? 2 : 17},
+              ]
+            }>
             <RichText
               value={rt}
               style={[
                 a.text_md,
-                a.leading_snug,
                 isFromSelf && {color: t.palette.white},
                 isPending &&
                   t.name !== 'light' && {color: t.palette.primary_300},
               ]}
               interactiveStyle={a.underline}
               enableTags
+              emojiMultiplier={3}
             />
           </View>
         )}