revert: Revert "Modularize the app"

Epic fail, not sure what happened, but I am sure that I don't want to spend the rest of the day debugging no error crash, I'll just try again later. It is what it is, I guess...

source-api/build.gradle.kts

@@ -1,42 +0,0 @@
-plugins {
-    kotlin("multiplatform")
-    kotlin("plugin.serialization")
-    id("com.android.library")
-}
-
-kotlin {
-    androidTarget()
-    sourceSets {
-        val commonMain by getting {
-            dependencies {
-                api(kotlinx.serialization.json)
-                api(libs.injekt.core)
-                api(libs.rxjava)
-                api(libs.jsoup)
-            }
-        }
-        val androidMain by getting {
-            dependencies {
-                implementation(projects.core)
-                api(androidx.preference)
-
-                // Workaround for https://youtrack.jetbrains.com/issue/KT-57605
-                implementation(kotlinx.coroutines.android)
-                implementation(project.dependencies.platform(kotlinx.coroutines.bom))
-            }
-        }
-    }
-}
-android {
-    namespace = "eu.kanade.tachiyomi.source"
-    defaultConfig {
-        consumerProguardFile("consumer-proguard.pro")
-    }
-}
-tasks {
-    withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
-        kotlinOptions.freeCompilerArgs += listOf(
-            "-Xexpect-actual-classes",
-        )
-    }
-}