refactor: use relative imports

Author: javier-godoy

src/main/resources/META-INF/frontend/fc-xterm/xterm-selection-mixin.ts

@@ -18,8 +18,8 @@
  * #L%
  */
 import { Terminal } from 'xterm'
-import { TerminalMixin, TerminalAddon } from '@vaadin/flow-frontend/fc-xterm/xterm-element';
-import { IConsoleMixin } from '@vaadin/flow-frontend/fc-xterm/xterm-console-mixin';
+import { TerminalMixin, TerminalAddon } from './xterm-element';
+import { IConsoleMixin } from './xterm-console-mixin';
 
 interface ISelectionMixin extends TerminalMixin {
 	keyboardSelectionEnabled: boolean;
@@ -180,4 +180,4 @@ export function XTermSelectionMixin<TBase extends Constructor<TerminalMixin>>(Ba
 	}
 
  }
-}
+}