fix #10666 チャンネル検索ですべてのチャンネルの取得/表示ができるようにする (#10667)

* Update CHANGELOG.md

* fix : able to search all channels

* add chennel/search test

* update Changelog

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Co-authored-by: tamaina <tamaina@hotmail.co.jp>
Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>
Co-authored-by: atsuchan <83960488+atsu1125@users.noreply.github.com>
Co-authored-by: Masaya Suzuki <15100604+massongit@users.noreply.github.com>
Co-authored-by: Kagami Sascha Rosylight <saschanaz@outlook.com>
Co-authored-by: taiy <53635909+taiyme@users.noreply.github.com>
Co-authored-by: xianon <xianon@hotmail.co.jp>
Co-authored-by: kabo2468 <28654659+kabo2468@users.noreply.github.com>
Co-authored-by: YS <47836716+yszkst@users.noreply.github.com>
Co-authored-by: Khsmty <me@khsmty.com>
Co-authored-by: Soni L <EnderMoneyMod@gmail.com>
Co-authored-by: mei23 <m@m544.net>
Co-authored-by: daima3629 <52790780+daima3629@users.noreply.github.com>
Co-authored-by: Windymelt <1113940+windymelt@users.noreply.github.com>
Co-authored-by: Ebise Lutica <7106976+EbiseLutica@users.noreply.github.com>