jsxTagName should be same as htmlTagName

[jsit]

htmlTagName is linked to htmlStatement (which is linked to Statement). jsxTagName should either be linked to htmlTagName or to Statement for consistency.

:verbose hi htmlTagName
htmlTagName    xxx links to htmlStatement
        Last set from /usr/local/Cellar/macvim/8.2-166/MacVim.app/Contents/Resources/vim/runtime/syntax/html.vim line 267
:verbose hi htmlStatement
htmlStatement  xxx links to Statement
        Last set from /usr/local/Cellar/macvim/8.2-166/MacVim.app/Contents/Resources/vim/runtime/syntax/html.vim line 316