fix(ios): declare ITSAppUsesNonExemptEncryption=false for both targets
Adds the export-compliance key to project.yml (xcodegen source) and the
two generated Info.plists (Peek + peek-save_iOS share extension). Without
this, every TestFlight upload requires manually filling out the
export-compliance questionnaire in App Store Connect; with it, builds
clear that gate automatically.
We only use OS-provided HTTPS/keychain crypto, so the "exempt" declaration
is correct.