Add support of displaying removed transactions from mempool.space

Hi, guys

I would like to see more consistent information on Blockstream Explorer like on memepool.space

There is good example of edge case when in the middle of bumping up fee original transaction was mined, so new transaction was removed but still viewable on mempool.space which is supposed to be but in Blockstream Explorer case it shows transaction not found.

Original transaction https://mempool.space/tx/a914426792a58b3c5a641f658668e39610025b02c9682eab6ec63afaba42ce3e => https://blockstream.info/tx/a914426792a58b3c5a641f658668e39610025b02c9682eab6ec63afaba42ce3e everything looks similar except that info that this tx has conflicting one
Removed transaction https://mempool.space/tx/d599346ffa3e7694a8484689cb195de701a78191f268f906693be27fb2547cb5 => https://blockstream.info/tx/d599346ffa3e7694a8484689cb195de701a78191f268f906693be27fb2547cb5 this should be viewable and marked as removed