Dont delete checked items in checklist

[rohanrichards]

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Please provide a concise description of the problem that would be addressed by this feature.

When the shopping list has over 100 checked items on it, they are removed and the list is truncated to 100 items. We prefer to keep all of our items in our list and uncheck them each week after doing inventory on what we need at the shops. This means we lose a lot of our grocery items between shops.

Please provide a concise description of the feature that would resolve your issue.

Either make it configurable, or simply don't delete the data. This is user data (often manually entered) and is valuable, it should be treated as such. If this is a performance problem, then find ways to optimize the list (there are many) to manage high numbers of items, but in my experience this doesn't become an issue until you get into the thousands anyway.

Please consider and list out some caveats or tradeoffs made in your design decision

Might require more work to make the list performant at large numbers of items, but could be worth it.
Env Var might be easier.

Additional Information

• If this is accepted I'm willing to submit a PR to provide this feature
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