docs(account): connect to Ledger over Bluetooth in example aepp

[davidyuk]

This PR is supported by the Æternity Foundation

https://www.npmjs.com/package/@ledgerhq/hw-transport-web-ble
temporary test at https://davidyuk.github.io/aepp-sdk-js/develop/examples/browser/aepp/
the exception that can't be handled LedgerHQ/ledger-live#6746
ble support in browsers https://caniuse.com/web-bluetooth
added a workaround to connect via ble on android LedgerHQ/ledgerjs#352

It works on desktop/Android Chrome via USB and BLE transports. Not working in Safari at all.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (26d66a3) to head (7580707).
Report is 4 commits behind head on develop.

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##   develop   #2063   +/-   ##
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