[Glitch] Use the new JSX transform everywhere

Port 8f66126b10 to glitch-soc

app/javascript/flavours/glitch/components/server_hero_image.tsx

@@ -1,4 +1,5 @@
-import React, { useCallback, useState } from 'react';
+import { useCallback, useState } from 'react';
+import * as React from 'react';
 
 import classNames from 'classnames';