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Update wallet/premium/index.rst, wallet/premium/whirlpool/whirlpool.rst, wallet/premium/whirlpool/pools-and-fees.rst, wallet/premium/ricochet/ricochet.rst, wallet/premium/ricochet/ricochet-cost.rst files

Update wallet/faqs/no-bech32.rst, wallet/faqs/miner-fee-calc.rst, wallet/faqs/lowest-tx-fees.rst, wallet/faqs/index.rst, wallet/faqs/faqs.rst, wallet/faqs/buy-btc.rst, wallet/faqs/address-reuse.rst, wallet/faqs/segwit-support.rst, wallet/faqs/samourai-permissions.rst files

Update wallet/troubleshoot/test-passphrase.rst, wallet/troubleshoot/mnemonic-restore.rst, wallet/troubleshoot/index.rst, wallet/troubleshoot/backup-restore.rst, wallet/troubleshoot/address-calculator.rst files

Update wallet/intro/install-samourai.rst, wallet/intro/index.rst, wallet/intro/create-wallet.rst, wallet/intro/send/index.rst, wallet/intro/receive/index.rst, wallet/intro/receive/first-deposit.rst, index.rst files

Missing links + removed sentences

See merge request documentation/docs.samourai.io!2

Misc. fixes and updates

See merge request documentation/docs.samourai.io!1