CryptoKit migration (#628)

* WIP.

* WIP

* WIP Edit

* Key selection.

* WIP

* WIP

* Proxy through

* WIP

* Remove verify.

* Migration.

* Comment

* Add param

* Semi-offering key

* Ignore updates if test build.

* Fix rsa public key gen

* Messily fix RSA

* Remove 1024 bit rsa

* Cleanup

* Cleanup

* Clean out MLDSA refs for now

* Dump notifier changes

* Put back UI tweaks

* Fixes.

Sources/Secretive/Controllers/ShellConfigurationController.swift

@@ -56,7 +56,7 @@ struct ShellConfigurationController {
         } catch {
             return false
         }
-        handle.write("\n# Secretive Config\n\(shellInstructions.text)\n".data(using: .utf8)!)
+        handle.write(Data("\n# Secretive Config\n\(shellInstructions.text)\n".utf8))
         return true
     }