Fix B2 bucket upload issue and store b2_enabled in config

This commit addresses two main issues:

    The 'b2_enabled' value was not being stored in the config JSON. Added it to the config JSON to enable or disable B2 bucket uploads as needed.
    Corrected the execution of b2-cli commands in the MysqlDatabaseBackup class using backticks for proper shell command execution in Ruby.

These changes should resolve the issue of the database dump file not being uploaded to the B2 bucket.

mysql_database_backup.rb

@@ -27,7 +27,6 @@ class MysqlDatabaseBackup
     return unless @b2_enabled
 
     upload_to_b2(backup_file)
-
   end
 
   def delete_old_backups
@@ -52,16 +51,16 @@ class MysqlDatabaseBackup
     b2_file_url = "b2://#{@b2_bucket_name}/#{b2_file_name}"
     # Check if a backup file with the same name already exists in the B2 bucket
 
-    existing_file = b2-cli list-file-names #{@b2_bucket_name} --prefix #{b2_file_name}
+    existing_file = `b2-cli list-file-names #{@b2_bucket_name} --prefix #{b2_file_name}`
     if existing_file.include?(b2_file_name)
       # Delete the existing backup file from the B2 bucket
       file_version = existing_file.match(/"fileId": "([^"]+)"/)[1]
-    b2-cli delete-file-version #{@b2_bucket_name} #{b2_file_name} #{file_version}
+      `b2-cli delete-file-version #{@b2_bucket_name} #{b2_file_name} #{file_version}`
       puts "Deleted existing backup file from B2 bucket: #{b2_file_url}"
     end
-    Upload the backup file to the B2 bucket
+    # Upload the backup file to the B2 bucket
 
-    b2-cli upload-file #{@b2_bucket_name} #{backup_file} #{b2_file_name}
+    `b2-cli upload-file #{@b2_bucket_name} #{backup_file} #{b2_file_name}`
     puts "Uploaded backup file to B2 bucket: #{b2_file_url}"
   end
 end

mysql_database_config.rb

@@ -20,10 +20,13 @@ class MysqlDatabaseConfig
       backup_dir = prompt('Backup Directory', default: '.')
 
       b2_enabled = prompt_bool('Enable Backblaze B2?', default: false)
+      config['b2_enabled'] = b2_enabled
       if b2_enabled
-        @b2_key_id = prompt('Backblaze B2 Key ID')
+        config['b2'] = {
-        @b2_application_key = prompt('Backblaze B2 Application Key')
+          'key_id' => @b2_key_id,
-        @b2_bucket_name = prompt('Backblaze B2 Bucket Name')
+          'application_key' => @b2_application_key,
+          'bucket_name' => @b2_bucket_name
+        }
       end
 
       config = {