This fixes some minor bugs other bugs as well:

 - The issue link does not break anymore between icon and link text
 - Vertical alignment between vulnerability title / dismissed / issue
   link
 - Jitter on hover of the last line, due to missing border on the bottom
 - Ensuring a margin between vulnerability info and confidence
 - Give more space to the vulnerability info, instead of the buttons
 - Thin out DOM nesting with the help of <template>