fix: タイムテーブルのモバイル表示を改善#83

takusandayooo merged 2 commits intoadd-time-table-pagecoderdojo-japan/dojocon2025.coderdojo.jp:add-time-table-pagefrom

fix-time-table-mobile-displaycoderdojo-japan/dojocon2025.coderdojo.jp:fix-time-table-mobile-displayCopy head branch name to clipboard