Secure Settings store (#831)

* Add SettingsStore

* Use keychain instead of UserDefaults in JustUpdatedChecker.swift

* Add ability disable the SSH comment via settings

* Make SettingsStore functions non-static, re-implement them as
subscripts and make settingsStore an environmentObject

Fixes: https://github.com/maxgoedjen/secretive/pull/536#discussion_r1508446459

* Add rawValues for CommentStyle enum

* Use SettingsStore for querying the comment style in SecretDetailView

Fixes: https://github.com/maxgoedjen/secretive/pull/536#discussion_r1509655340

* Revert "Use keychain instead of UserDefaults in JustUpdatedChecker.swift"

This reverts commit ae8a21a1bf7f9e2d04fcb83c4543995db0111325.

* Remove copyright info

* Use "enum Constants" in SettingsStore

* WIP

* Cleanup

* Cleanup

* Cleanup strings

* WIP

* Cleanup

* Cleanup

* Cleanup

* Cleanup

* Cleanup

---------

Co-authored-by: Paul Heidekrüger <paul.heidekrueger@tum.de>

Sources/Packages/Package.swift

@@ -22,6 +22,9 @@ let package = Package(
         .library(
             name: "CertificateKit",
             targets: ["CertificateKit"]),
+        .library(
+            name: "SettingsKit",
+            targets: ["SettingsKit"]),
         .library(
             name: "SecretAgentKit",
             targets: ["SecretAgentKit"]),
@@ -76,6 +79,12 @@ let package = Package(
             resources: [localization],
             swiftSettings: swiftSettings,
         ),
+        .target(
+            name: "SettingsKit",
+            dependencies: [],
+            resources: [localization],
+            swiftSettings: swiftSettings,
+        ),
         .target(
             name: "SecretAgentKit",
             dependencies: ["SecretKit", "SSHProtocolKit", "CertificateKit", "Common", "Formatters"],