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/VideoEmbedInner/web-controls/Scrubber.tsx

@@ -1,7 +1,8 @@
-import React, {useCallback, useEffect, useRef, useState} from 'react'
+import {useCallback, useEffect, useRef, useState} from 'react'
 import {View} from 'react-native'
 import {msg} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
+import type React from 'react'
 
 import {isFirefox, isTouchDevice} from '#/lib/browser'
 import {clamp} from '#/lib/numbers'