Update index.html

[Vinit3110]

1. Navigation links and buttons

• Removed: duplicate onclick handlers on the same link; duplicate target attributes (e.g., target="_self" and target="_blank" together).
• Added: a single onclick="scrollToSection('...')" per nav item.
• Fixed: misspelled/malformed ARIA attributes (aria-lable/arialabel → aria-label).

2. Hero CTA and SVG markup

• Removed: stray closing tag and other mis-nested/extra closing tags that broke the button and SVG structure.
• Added: proper closing and balanced button markup (open/close order corrected).
• About “stats” layout
  • Removed: premature closing of the about-stats container that left .stat items outside their wrapper.
  • Added: .stat items nested correctly inside .about-stats (restoring intended grid/flex behavior).

3. Skills section identity

• Removed: duplicate id attribute (id="skills" and id="technical-skills" simultaneously).
• Kept/Added: single id="skills" for valid DOM and anchor-targeting.

4. Contact section (links and form)

• Fixed: malformed mailto link attributes (e.g., broken quotes on title/aria-label).
• Removed: duplicated required attributes on inputs.
• Removed: disabled="disabled" on the submit button (form is now actually submit-able).

5. Accessibility and semantics

• Added: consistent aria-labels on interactive elements (logo, social icons, CTA buttons).
• Removed: invalid/empty attributes that caused validation warnings and potential JS selection issues.

The above changes were made using the help of AI for identifying and fixing the major issue.