[ImgBot] Optimize images (#692)

*Total -- 187.72kb -> 175.31kb (6.61%)

/src/assets/recipes/jam-band.jpg -- 74.16kb -> 66.40kb (10.47%)
/src/assets/recipes/hibiscus-mint-tea.jpg -- 49.10kb -> 46.26kb (5.77%)
/src/assets/recipes/cucumber-lemonade.jpg -- 30.01kb -> 28.89kb (3.74%)
/src/assets/recipes/hot-buttered-rum.jpg -- 34.45kb -> 33.76kb (2.01%)

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Author: imgbot[bot]