docs: luaref cleanup #24541

- drop "luaref-" prefix in favor of "lua-" or nothing, where possible.
- remove redundant "luaref--lang…" and "luaref-api…" tags.

runtime/lua/vim/_meta/regex.lua

@@ -18,9 +18,9 @@ function vim.regex(re) end
 local regex = {} -- luacheck: no unused
 
 --- Match the string against the regex. If the string should match the regex
---- precisely, surround the regex with `^` and `$`. If the was a match, the
---- byte indices for the beginning and end of the match is returned. When
---- there is no match, `nil` is returned. As any integer is truth-y,
+--- precisely, surround the regex with `^` and `$`. If there was a match, the
+--- byte indices for the beginning and end of the match are returned. When
+--- there is no match, `nil` is returned. Because any integer is "truthy",
 --- `regex:match()` can be directly used as a condition in an if-statement.
 --- @param str string
 function regex:match_str(str) end