Install html-validate and html-validate-vue plugins, as well as the html-validate Vue CLI plugin
Using valid HTML will improve cross-browser compatibility and accessibility
Validation-related changes in this PR include adding type attributes to buttons, alt text to some images, and using legend inside of fieldset for the reference form
Developer self-review checklist
[ ] Potentially confusing code has been explained with comments
[ ] No warnings or errors have been introduced; all known error cases have been handled
[ ] Any appropriate documentation (within the code, README.md, docs, etc) has been updated
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Description
html-validateandhtml-validate-vueplugins, as well as thehtml-validateVue CLI plugintypeattributes to buttons,alttext to some images, and usinglegendinside offieldsetfor the reference formDeveloper self-review checklist