add suppress unused class warning

server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0004_AnimeTablesBatch1.kt

@@ -13,6 +13,7 @@ import org.jetbrains.exposed.dao.id.IntIdTable
 import org.jetbrains.exposed.sql.SchemaUtils
 import org.jetbrains.exposed.sql.transactions.transaction
 
+@Suppress("ClassName", "unused")
 class M0004_AnimeTablesBatch1 : Migration() {
     private class AnimeExtensionTable : IntIdTable() {
         val apkName = varchar("apk_name", 1024)

server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0005_AnimeTablesBatch2.kt

@@ -13,6 +13,7 @@ import org.jetbrains.exposed.dao.id.IntIdTable
 import org.jetbrains.exposed.sql.SchemaUtils
 import org.jetbrains.exposed.sql.transactions.transaction
 
+@Suppress("ClassName", "unused")
 class M0005_AnimeTablesBatch2 : Migration() {
     private class AnimeTable : IntIdTable() {
         val url = varchar("url", 2048)

server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0006_AnimeTablesBatch3.kt

@@ -13,6 +13,7 @@ import org.jetbrains.exposed.sql.SchemaUtils
 import org.jetbrains.exposed.sql.transactions.transaction
 import suwayomi.tachidesk.anime.model.table.AnimeTable
 
+@Suppress("ClassName", "unused")
 class M0006_AnimeTablesBatch3 : Migration() {
     private class EpisodeTable : IntIdTable() {
         val url = varchar("url", 2048)

server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0010_MangaAndChapterMeta.kt

@@ -15,6 +15,7 @@ import suwayomi.tachidesk.manga.model.table.MangaTable
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
+@Suppress("ClassName", "unused")
 class M0010_MangaAndChapterMeta : Migration() {
     private class ChapterMetaTable : IntIdTable() {
         val key = varchar("key", 256)