refactor(SeacmsApi): rename class

SeacmsApi.php

@@ -2,16 +2,10 @@
 // SPDX-License-Identifier: EUPL-1.2
 // Authors: see README.md
 
-use PicoContentEditor\Status;
-use PicoContentEditor\Auth;
-use PicoContentEditor\Edits;
-use PicoContentEditor\Uploads;
-use PicoContentEditor\EditorsHandlers\ContentTools;
-
 /**
  * An api plugin for Pico 3.
  */
-class PicoAPI extends AbstractPicoPlugin
+class SeacmsApi extends AbstractPicoPlugin
 {
     /**
      * Pico API version.