Use OS Secure Store for nsec

[kernelkind]

Tested with MacOS & android. Need to test with linux & windows still

Run adb shell 'run-as com.damus.notedeck ls -la /data/user/0/com.damus.notedeck/files/storage/accounts' and observe nsec getting turned into pubkey, but you remain logged in as nsec.

This implementation migrates nsec values from plain files into the secure store while keeping the user logged in.

[alltheseas]

how do i test this on linux?

[kernelkind]

how do i test this on linux?

run it, add an nsec, look at ~/.local/share/notedeck/storage/accounts and make sure there is no nsec written there

[kernelkind]

works with linux now & rebased with master

[alltheseas]

I removed prior keys from the folder above using rm rf, and confirming via ls.

I ran cargo run --release, and found a newly created key in the same folder above on Linux.

[alltheseas]

In the newly created file in .../accounts it is a npub, so the PR checks out 💪. Confirming I was able to post a note to nostr with this PR checked out https://nostr.eu/nevent1qqsdprsuyz4t76ecnsar3d3xjgd25dxy8rjfy30appsntzq5zntznqczyrrmal6g449683c9se37res6ug3z354df299eue63tnjcj2ml0etcevll2f

[alltheseas]

confirmed via the following command I stored to Linux keyring: secret-tool search service com.damus.notedeck

to install on linux I used sudo apt install libsecret-tools