feat: replace gson with kotlinx-serialization

Signed-off-by: qwq233 <qwq233@qwq2333.top>

app/build.gradle.kts

@@ -1,3 +1,25 @@
+/*
+ * QAuxiliary - An Xposed module for QQ/TIM
+ * Copyright (C) 2019-2022 qwq233@qwq2333.top
+ * https://github.com/cinit/QAuxiliary
+ *
+ * This software is non-free but opensource software: you can redistribute it
+ * and/or modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version and our eula as published
+ * by QAuxiliary contributors.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * and eula along with this software.  If not, see
+ * <https://www.gnu.org/licenses/>
+ * <https://github.com/cinit/QAuxiliary/blob/master/LICENSE.md>.
+ */
+
 import com.android.build.gradle.internal.tasks.factory.dependsOn
 import java.util.UUID
 
@@ -5,6 +27,7 @@ plugins {
     id("com.android.application")
     id("org.jetbrains.kotlin.android")
     id("com.google.devtools.ksp") version "${Version.kotlin}-${Version.ksp}"
+    kotlin("plugin.serialization") version Version.kotlin
 }
 
 val currentBuildUuid = UUID.randomUUID().toString()
@@ -157,6 +180,8 @@ dependencies {
     val appCenterSdkVersion = "4.4.5"
     implementation("com.microsoft.appcenter:appcenter-analytics:${appCenterSdkVersion}")
     implementation("com.microsoft.appcenter:appcenter-crashes:${appCenterSdkVersion}")
+
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.4.0-RC")
 }
 
 val adb: String = androidComponents.sdkComponents.adb.get().asFile.absolutePath