Revert "sideバー"

This reverts commit 03e2bcb91e54e7bf06765b10c9af6fe4b8d2d465.
Revert "Revert "sideバー""

This reverts commit b0ab70258d07ea104c002890cc0bf92ba4295985.
Revert "Revert "Revert "sideバー"""

This reverts commit 47ad778e9b65df7a3e3bfb57e7617a9bc064aa7e.
Revert "Revert "Revert "Revert "sideバー""""

This reverts commit ea536b273b72ea269f7f8969b800a7d9176de64a.