Fix image filter tooltip

What does this MR do and why?

This fixes a bug where the image filter's tooltip isn't displaying. See this for why it's happening > #376341 (comment 1197650875)

There's a bug, the tooltip for each dropdown item in the image filter is not showing. This is because <filter-item> already sets v-gl-tooltip, so the v-gl-tooltip.left.viewport="image" in ImageFilter is not being used because the FilterItem one is replacing it. We will either need to wrap it in a div.

Screenshots or screen recordings

fix-image-tooltip

How to set up and validate locally

1. Enable the FF echo "Feature.enable(:refactor_vulnerability_filters)" | rails c
2. Security & Compliance > Vulnerability report > Operational vulnerabilities tab
3. Hovering over an item in the image filter will display the tooltip
4. Repeat the same steps with the FF off echo "Feature.disable(:refactor_vulnerability_filters)" | rails c

Alternatively, you can mock the date like this:

1. Select the image div like this so you have access to it:

2. And paste this into the console to replace the images data:

$vm0.images = ['some long image name 1', 'some long image name 2', 'some long image name 3 sooooooo looooonnnnnng very loooooonnnng']

MR acceptance checklist

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