[darkmode] re-design theme-switch

Co-authored-by: Hamidreza Ghavami <hamid.r.gh.1998@gmail.com>

web/html/common/prompt_modal.html

@@ -1,7 +1,7 @@
 {{define "promptModal"}}
 <a-modal id="prompt-modal" v-model="promptModal.visible" :title="promptModal.title"
          :closable="true" @ok="promptModal.ok" :mask-closable="false"
-         :class="siderDrawer.isDarkTheme ? darkClass : ''"
+         :class="themeSwitcher.darkCardClass"
          :ok-text="promptModal.okText" cancel-text='{{ i18n "cancel" }}'>
     <a-input id="prompt-modal-input" :type="promptModal.type"
              v-model="promptModal.value"

web/html/common/qrcode_modal.html

@@ -1,7 +1,7 @@
 {{define "qrcodeModal"}}
 <a-modal id="qrcode-modal" v-model="qrModal.visible" :title="qrModal.title"
          :closable="true"
-         :class="siderDrawer.isDarkTheme ? darkClass : ''"
+         :class="themeSwitcher.darkCardClass"
          :footer="null"
          width="300px">
     <a-tag color="green" style="margin-bottom: 10px;display: block;text-align: center;" >{{ i18n "pages.inbounds.clickOnQRcode" }}</a-tag>

web/html/common/text_modal.html

@@ -1,7 +1,7 @@
 {{define "textModal"}}
 <a-modal id="text-modal" v-model="txtModal.visible" :title="txtModal.title"
          :closable="true" ok-text='{{ i18n "copy" }}' cancel-text='{{ i18n "close" }}'
-         :class="siderDrawer.isDarkTheme ? darkClass : ''"
+         :class="themeSwitcher.darkCardClass"
          :ok-button-props="{attrs:{id:'txt-modal-ok-btn'}}">
     <a-button v-if="!ObjectUtil.isEmpty(txtModal.fileName)" type="primary" style="margin-bottom: 10px;"
               :href="'data:application/text;charset=utf-8,' + encodeURIComponent(txtModal.content)"