Use Button instead of TextLink for show more button (#8480)

* use button instead of TextLink for show more

* Match post text size, provide interaction feedback

* Move to new Post components dir

* Prettier

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Co-authored-by: Eric Bailey <git@esb.lol>

src/components/Post/Embed/VideoEmbed/index.tsx

@@ -1,7 +1,7 @@
 import React, {useCallback, useState} from 'react'
 import {ActivityIndicator, View} from 'react-native'
 import {ImageBackground} from 'expo-image'
-import {AppBskyEmbedVideo} from '@atproto/api'
+import {type AppBskyEmbedVideo} from '@atproto/api'
 import {msg, Trans} from '@lingui/macro'
 import {useLingui} from '@lingui/react'