feat: 路肩退避のMRMの表示に対応する

[yabuta]

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MRMに路肩退避が追加されたのでこのときもCONFORTABLE STOPと同じ表示をするようにしました
また、external signageに不要なファイルとstand alone modeのときにserviceでの指示になっていなかったので修正しました

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[tkhmy]

LGTM