chore(pedm): convert JSON config to PascalCase

Author: allan2

crates/devolutions-pedm/config.example.json

@@ -1,12 +1,12 @@
 {
-    "db": "libsql",
-    "libsql": {
-        "path": "C:/ProgramData/Devolutions/Agent/pedm/pedm.sqlite"
+    "Db": "Libsql",
+    "Libsql": {
+        "Path": "C:/ProgramData/Devolutions/Agent/pedm/pedm.sqlite"
     },
-    "postgres": {
-        "host": "192.168.0.100",
-        "dbname": "pedm",
-        "user": "pedm",
-        "password": "pedm"
+    "Postgres": {
+        "Host": "192.168.0.100",
+        "Dbname": "pedm",
+        "User": "pedm",
+        "Password": "pedm"
     }
 }

crates/devolutions-pedm/src/config.rs

@@ -9,6 +9,7 @@ use crate::data_dir;
 
 /// The application config.
 #[derive(Serialize, Deserialize)]
+#[serde(rename_all = "PascalCase")]
 pub(crate) struct Config {
     /// The selected database backend.
     ///
@@ -67,7 +68,7 @@ impl Config {
 }
 
 #[derive(Serialize, Deserialize, Default, Debug)]
-#[serde(rename_all = "lowercase")]
+#[serde(rename_all = "PascalCase")]
 pub enum DbBackend {
     #[cfg_attr(feature = "libsql", default)]
     #[cfg(feature = "libsql")]
@@ -89,13 +90,15 @@ impl fmt::Display for DbBackend {
 }
 
 #[derive(Serialize, Deserialize)]
+#[serde(rename_all = "PascalCase")]
 pub(crate) struct LibsqlConfig {
     /// The path to the SQLite database file.
     pub(crate) path: Utf8PathBuf,
 }
 
 // TODO: SSL support
 #[derive(Serialize, Deserialize)]
+#[serde(rename_all = "PascalCase")]
 pub(crate) struct PgConfig {
     pub(crate) host: String,
     pub(crate) dbname: String,