一般情况，单元格JSON数据：
{
"ct": { //单元格值格式
"fa": "General", //格式名称为自动格式
"t": "n" //格式类型为数字类型
},
"v": 233, //内容的原始值为 233
"m": 233
}
里面的内容是保存在v里面的

而多行文本的内容却保存在ct里面的s里面的v里面，JSON结构如下
{
"ct": { //单元格值格式
"fa": "General", //格式名称为自动格式
"t": "inlineStr" ,
"s":[{"v":"多行文本\n多行文本"}]
}
}

这两种单元格的JSON结构都不一致呢，导致websocket后端保存数据 update

I try to switch from RamBox to Ferdi. However I have several services with the same icon (slack, nextcloud). It would be a great help if I just cloud add a small textual label next to, under, over the icon. Don't care where.

Sorry that this is not a pull request, my JS/css knowledge is insufficient. I tried copying the tooltip to a div. Didn't get the correct tooltip and a misplaced div...