refactor(linkTools, elementTools)!: change Remove tool name

[kumilingus]

Description

As per documentation "The names of built-in link tools are kebab-case versions of their class names ". This was not the case for the linkTools.Remove and elementTools.Remove buttons.

Migration guide

You may have styled the Remove button using CSS in your app.

Before:

.joint-tool[data-tool-name="button"] circle {
    fill: #333;
}

Now:

.joint-tool[data-tool-name="remove"] circle {
    fill: #333;
}