update elements and fix some bugs

lib/src/prism/components/prism-tcl.min.js

+Prism.languages.tcl={comment:{pattern:/(^|[^\\])#.*/,lookbehind:!0},string:/"(?:[^"\\\r\n]|\\(?:\r\n|[\s\S]))*"/,variable:[{pattern:/(\$)(?:::)?(?:[a-zA-Z0-9]+::)*[a-zA-Z0-9_]+/,lookbehind:!0},{pattern:/(\$){[^}]+}/,lookbehind:!0},{pattern:/(^\s*set[ \t]+)(?:::)?(?:[a-zA-Z0-9]+::)*[a-zA-Z0-9_]+/m,lookbehind:!0}],"function":{pattern:/(^\s*proc[ \t]+)[^\s]+/m,lookbehind:!0},builtin:[{pattern:/(^\s*)(?:proc|return|class|error|eval|exit|for|foreach|if|switch|while|break|continue)\b/m,lookbehind:!0},/\b(elseif|else)\b/],scope:{pattern:/(^\s*)(global|upvar|variable)\b/m,lookbehind:!0,alias:"constant"},keyword:{pattern:/(^\s*|\[)(after|append|apply|array|auto_(?:execok|import|load|mkindex|qualify|reset)|automkindex_old|bgerror|binary|catch|cd|chan|clock|close|concat|dde|dict|encoding|eof|exec|expr|fblocked|fconfigure|fcopy|file(?:event|name)?|flush|gets|glob|history|http|incr|info|interp|join|lappend|lassign|lindex|linsert|list|llength|load|lrange|lrepeat|lreplace|lreverse|lsearch|lset|lsort|math(?:func|op)|memory|msgcat|namespace|open|package|parray|pid|pkg_mkIndex|platform|puts|pwd|re_syntax|read|refchan|regexp|registry|regsub|rename|Safe_Base|scan|seek|set|socket|source|split|string|subst|Tcl|tcl(?:_endOfWord|_findLibrary|startOf(?:Next|Previous)Word|wordBreak(?:After|Before)|test|vars)|tell|time|tm|trace|unknown|unload|unset|update|uplevel|vwait)\b/m,lookbehind:!0},operator:/!=?|\*\*?|==|&&?|\|\|?|<[=<]?|>[=>]?|[-+~\/%?^]|\b(?:eq|ne|in|ni)\b/,punctuation:/[{}()\[\]]/};