[bug] Style Var ID conversions missing

What happend?

Hi there, I'm continuing my work on porting over theming from https://github.com/Patitotective/ImThemes/blob/main/themes.toml and previously I reported missing style var ids, so i apologize if some of these are redundant to my previous posts. What's different this time is it seems you all have identified string values that map perfectly if the keys in this particular theme file are converted to hyphenated snakecase values, and by itterating over the key/values, I came up with a few more missing items. It appears that the following can't be converted using giu.StyleVarIDFromString(), and so I tried finding alternatives to setting these values which I made note of in the code. Anyway, I'm including it here in case this is helpful. Previously you weren't able to find references to a couple @ https://github.com/AllenDang/giu/issues/725, so perhaps this naming could help?

    var skipme = make([]string, 0)
    skipme = append(skipme, "columns-min-spacing")            // ??
    skipme = append(skipme, "cell-padding")                   // StyleVarCellPadding = StyleVarID(imgui.StyleVarCellPadding) https://github.com/search?q=repo%3AAllenDang%2Fgiu%20cell&type=code
    skipme = append(skipme, "window-menu-button-position")    // ??
    skipme = append(skipme, "tab-min-width-for-close-button") // ??
    skipme = append(skipme, "tab-border-size")                // missing. maybe 93? https://github.com/search?q=repo%3AAllenDang%2Fgiu+border-size&type=code
    skipme = append(skipme, "color-button-position")          // ?? *-button-position appears to be missing.

    for _, n := range skipme {
        if n == p.imguiVar {
            return nil
        }
    }
    _id := giu.StyleVarIDFromString(p.imguiVar)

Code example

main.go

```golang // put your code here! ```

To Reproduce

Run my demo
will see the crash...

Version

master

OS

ubuntu

AllenDang / giu