* combinging the setting of max dimensions on the container and on the contents dom node
* adding the css variable in order to be able to specify the max width of the content inside
* cleaning the code
* changing the name of the variable
* cleaning the code
* placing the hover max width variable into the others category of vscode-known-variables json file
* defining a fall back value of 500 pixels
* inlinging the code
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Co-authored-by: Alexandru Dima <alexdima@microsoft.com>