fix(VColorPicker): render in forced-colors mode

[06b]

Description

This addresses the request for High Contrast Support #21515 for the VColorPicker component when in forced-colors mode (e.g. Windows Accessibility > Contrast themes)

Before:

After:

Markup:

<template>
  <v-app>
    <v-container>
      <v-row>
        <v-col cols="12" sm="6" xl="3">
          <strong>Default</strong>
          <v-color-picker />
        </v-col>

        <v-col cols="12" sm="6" xl="3">
          <strong>Hide Canvas</strong>
          <v-color-picker hide-canvas />
        </v-col>

        <v-col cols="12" sm="6" xl="3">
          <strong>Hide Inputs</strong>
          <v-color-picker hide-inputs />
        </v-col>

        <v-col cols="12" sm="6" xl="3">
          <strong>Hide Inputs & Canvas</strong>
          <v-color-picker hide-canvas hide-inputs />
        </v-col>

        <v-col cols="12" sm="6" xl="3">
          <strong>With Swatches</strong>
          <v-color-picker show-swatches />
        </v-col>

        <v-col cols="12" sm="6" xl="3">
          <strong>With Swatches & Hide Canvas</strong>
          <v-color-picker hide-canvas show-swatches />
        </v-col>

        <v-col cols="12" sm="6" xl="3">
          <strong>With Swatches & Hide Inputs</strong>
          <v-color-picker hide-inputs show-swatches />
        </v-col>

        <v-col cols="12" sm="6" xl="3">
          <strong>Swatches Only</strong>
          <v-color-picker hide-canvas hide-inputs show-swatches />
        </v-col>
      </v-row>

    </v-container>
  </v-app>
</template>