Add way to exclude settings from backups (#1682)

* Add way to exclude settings from backups

* Exclude flaresolverrEnabled

* Exclude usernames/passwords

* Exclude writing deprecated settings to the backup

* Exclude AuthMode

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupExport.kt

@@ -154,7 +154,7 @@ object ProtoBackupExport : ProtoBackupBase() {
         automatedBackupDir.listFiles { file -> file.name.startsWith(Backup.getBasename(AUTO_BACKUP_FILENAME)) }?.forEach { file ->
             try {
                 cleanupAutomatedBackupFile(file)
-            } catch (e: Exception) {
+            } catch (_: Exception) {
                 // ignore, will be retried on next cleanup
             }
         }
@@ -311,10 +311,6 @@ object ProtoBackupExport : ProtoBackupBase() {
                 }
             }
 
-//            if (flags.includeHistory) {
-//                backupManga.history = TODO()
-//            }
-
             backupManga
         }