fix: import delegation alias

[vasco-santos]

Fixes alias for:

• Import delegation alias was not being passed to client https://github.com/web3-storage/w3up-client/blob/v2.1.1/src/index.js#L356
• switch-account alias was not being set properly like in the inquirerPick

➜  w3up-cli git:(fix/import-delegation-alias) ✗ node src/cli.js import-delegation delegation.car testalias
✔ Imported delegation for testalias did:key:z6Mks2n8XVoqhhXyArKx7WxxCFPEWxJEcp5HERr7pW2KzLWU from delegation.car successfully.

➜  w3up-cli git:(fix/import-delegation-alias) ✗ node src/cli.js accounts
selected   alias       did
--------   --------    --------
*          self        did:key:z6Mkej48TJxzikp94tknz2pjJ5fc8AMjaicWLkn6wPLSFhvZ
           testalias   did:key:z6Mks2n8XVoqhhXyArKx7WxxCFPEWxJEcp5HERr7pW2KzLWU

➜  w3up-cli git:(fix/import-delegation-alias) ✗ node src/cli.js switch-account testalias
now using account: did:key:z6Mks2n8XVoqhhXyArKx7WxxCFPEWxJEcp5HERr7pW2KzLWU

➜  w3up-cli git:(fix/import-delegation-alias) ✗ node src/cli.js list
✔ Listing Uploads...
Date        Data CID
--------    --------
10/4/2022   bafybeifpnwjt6jl43yttpo64lhvbvfyepqsoj2cpoxaami6rk3x4kuwcty

[github-actions[bot]]

:tada: This PR is included in version 1.9.2 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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