Add min price line to price history chart

[Razzmatazzz]

The average price line is solid (as previously), and the new minimum price line is dashed.

Previously, the price line would be red or green depending on if the price had gone down or up in the last two days. This changes it so that each line are either red or green depending on if the average or minimum price has gone up or down from the start of the graph to the end of the graph.

Also makes the minimum for the chart dynamic to show a better range for items with a higher price floor:

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[Razzmatazzz]

.deploy

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Deployment Triggered 🚀

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Branch: price-history-min

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Deployment Results ✅

Razzmatazzz successfully deployed branch price-history-min to production

Environment URL: tarkov.dev