fix: add bounds check in Row.matchAll to prevent slice panic

[Yanhu007]

Fixes #59

Problem

Row.matchAll computes idx+next+1 as the slice end without checking if it exceeds len(s). With certain compiled patterns, this causes a panic:

gg, _ := glob.Compile("/{a{*.json{", '/')`
gg.Match("/a/b/c/d/e/foo.json")
// panic: runtime error: slice bounds out of range [:6] with length 5

Fix

Add a bounds check before slicing:

end := idx + next + 1
if i < length || end > len(s) || !m.Match(s[idx:end]) {
    return false
}