Revert to private functions

shared/build.gradle.kts

@@ -62,8 +62,7 @@ kotlin {
         }
         val androidMain by getting {
             dependencies {
-                implementation("com.squareup.okhttp3:okhttp:4.10.0")
+                implementation("io.ktor:ktor-client-okhttp:2.1.1")
-                implementation("io.ktor:ktor-client-okhttp:2.2.4")
                 implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.4.0")
 
                 // Sql

shared/src/commonMain/kotlin/bou/amine/apps/readerforselfossv2/rest/SelfossApi.kt

@@ -51,6 +51,7 @@ class SelfossApi(private val appSettingsService: AppSettingsService) {
                     prettyPrint = true
                     isLenient = true
                     ignoreUnknownKeys = true
+                    explicitNulls = false
                 })
             }
             install(Logging) {
@@ -98,8 +99,8 @@ class SelfossApi(private val appSettingsService: AppSettingsService) {
     }
 
     // Api version was introduces after the POST login, so when there is a version, it should be available
-    fun shouldHavePostLogin() = appSettingsService.getApiVersion() != -1
+    private fun shouldHavePostLogin() = appSettingsService.getApiVersion() != -1
-    fun hasLoginInfo() =
+    private fun hasLoginInfo() =
         appSettingsService.getUserName().isNotEmpty() && appSettingsService.getPassword()
             .isNotEmpty()