Bad performance when number of tweet account increasing by time

[docongminh]

When many users create tweets. tweetAccounts will be increasing over time. it's leads to bad performance when you fetch all tweet accounts (for example scrolling tweets)

solana-twitter/tests/solana-twitter.ts

Lines 123 to 126 in 11e40b7

	it('can fetch all tweets', async () => {
	const tweetAccounts = await program.account.tweet.all();
	assert.equal(tweetAccounts.length, 3);
	});