Always provide a default width to prevent console error

[stevebauman]

When rendering the result of the toVue array to a Vue component without a chart width set, it throws the below console error:

This can be prevented if we just default to a 100% width if the width is null.

My Vue component:

<template>
    <apexchart
        :type="chart.type"
        :width="chart.width"
        :height="chart.height"
        :series="chart.series"
        :options="chart.options"
    />
</template>

<script>
export default {
    props: {
        chart: {
            type: Object,
            required: true,
        },
    },
};
</script>