feat(settings): persist scalar settings across launches

crates/ely_domain/src/favorite.rs

@@ -1,4 +1,7 @@
-#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Copy, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
+#[serde(rename_all = "snake_case")]
 pub enum FavoriteLimit {
     Six,
     #[default]

crates/ely_domain/src/new_tab.rs

@@ -1,6 +1,9 @@
+use serde::{Deserialize, Serialize};
+
 use crate::{DomainError, UrlText};
 
-#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
+#[derive(Clone, Copy, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
+#[serde(rename_all = "snake_case")]
 pub enum NewTabDestination {
     #[default]
     ElyNewTab,

crates/ely_domain/src/privacy.rs

@@ -1,4 +1,7 @@
-#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Copy, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
+#[serde(rename_all = "snake_case")]
 pub enum HistoryRecordingPolicy {
     #[default]
     Record,

crates/ely_domain/src/search.rs

@@ -1,8 +1,10 @@
+use serde::{Deserialize, Serialize};
 use url::Url;
 
 use crate::{DomainError, UrlText};
 
-#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
+#[derive(Clone, Copy, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
+#[serde(rename_all = "snake_case")]
 pub enum SearchEngine {
     #[default]
     DuckDuckGo,

crates/ely_domain/src/sync.rs

@@ -1,3 +1,5 @@
+use serde::{Deserialize, Serialize};
+
 /// Connection lifecycle of the cloud sync client.
 ///
 /// The previous variant set was a single `SignedOut`, which made the
@@ -35,7 +37,8 @@ pub enum SyncObjectKind {
     PluginSettings,
 }
 
-#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
+#[derive(Clone, Copy, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
+#[serde(rename_all = "snake_case")]
 pub enum SyncObjectPolicy {
     #[default]
     Enabled,