Improve moderation behaviors: show alert/inform sources and improve UX around threads (#3677)

* Dont show account or profile alerts and informs on posts

* Sort threads to put blurred items at bottom

* Group blurred replies under a single 'show hidden replies' control

* Distinguish between muted and hidden replies in the thread view

* Fix types

* Modify the label alerts with some minor aesthetic updates and to show the source of a label

* Tune when an account-level alert is shown on a post

* Revert: show account-level alerts on posts again

* Rm unused import

* Fix to showing hidden replies when viewing a blurred item

* Go ahead and uncover replies when 'show hidden posts' is clicked

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Co-authored-by: dan <dan.abramov@gmail.com>

src/view/com/post-thread/PostThreadShowHiddenReplies.tsx

@@ -0,0 +1,61 @@
+import * as React from 'react'
+import {View} from 'react-native'
+import {msg} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+
+import {atoms as a, useTheme} from '#/alf'
+import {Button} from '#/components/Button'
+import {EyeSlash_Stroke2_Corner0_Rounded as EyeSlash} from '#/components/icons/EyeSlash'
+import {Text} from '#/components/Typography'
+
+export function PostThreadShowHiddenReplies({
+  type,
+  onPress,
+}: {
+  type: 'hidden' | 'muted'
+  onPress: () => void
+}) {
+  const {_} = useLingui()
+  const t = useTheme()
+  const label =
+    type === 'muted' ? _(msg`Show muted replies`) : _(msg`Show hidden replies`)
+
+  return (
+    <Button onPress={onPress} label={label}>
+      {({hovered, pressed}) => (
+        <View
+          style={[
+            a.flex_1,
+            a.flex_row,
+            a.align_center,
+            a.gap_sm,
+            a.py_lg,
+            a.px_xl,
+            a.border_t,
+            t.atoms.border_contrast_low,
+            hovered || pressed ? t.atoms.bg_contrast_25 : t.atoms.bg,
+          ]}>
+          <View
+            style={[
+              t.atoms.bg_contrast_25,
+              a.align_center,
+              a.justify_center,
+              {
+                width: 26,
+                height: 26,
+                borderRadius: 13,
+                marginRight: 4,
+              },
+            ]}>
+            <EyeSlash size="sm" fill={t.atoms.text_contrast_medium.color} />
+          </View>
+          <Text
+            style={[t.atoms.text_contrast_medium, a.flex_1]}
+            numberOfLines={1}>
+            {label}
+          </Text>
+        </View>
+      )}
+    </Button>
+  )
+}