luci-app-argon-config: adapt LuCI style of luci-theme-openwrt-2020
<%+cbi/valueheader%>
<label class="cbi-value" style="display:inline-block; width: 130px" for="ulfile"><%:Choose local file:%></label>
<input class="cbi-input-file" style="width: 400px" type="file" id="ulfile" name="ulfile" accept="image/png, image/jpeg, image/gif, video/mp4"/>
- <input type="submit" class="cbi-button cbi-input-apply" name="upload" value="<%:Upload%>" />
+ <input type="submit" class="btn cbi-button cbi-input-apply" name="upload" value="<%:Upload%>" />
<%+cbi/valuefooter%>
