fix: regression in options (#221)

* fix: headings not migrating to flat options

* fix: invalid key when using inherit

lua/rose-pine.lua

@@ -780,10 +780,10 @@ local function set_highlights()
  end
 
  if (highlight.inherit == nil or highlight.inherit) and existing ~= nil then
- highlight.inherit = nil
+ parsed.inherit = nil
  highlights[group] = vim.tbl_extend("force", existing, parsed)
  else
- highlight.inherit = nil
+ parsed.inherit = nil
  highlights[group] = parsed
  end
  end

lua/rose-pine/config.lua

@@ -141,23 +141,21 @@ local function migrate(options)
 
  -- Set h1 through h6 to the same color if only one is specified
  if type(options.groups.headings) == "string" then
- options.groups.headings = {
- h1 = options.groups.headings,
- h2 = options.groups.headings,
- h3 = options.groups.headings,
- h4 = options.groups.headings,
- h5 = options.groups.headings,
- h6 = options.groups.headings,
- }
- end
- if type(options.groups.headings) == "table" then
+ options.groups.h1 = options.groups.headings
+ options.groups.h2 = options.groups.headings
+ options.groups.h3 = options.groups.headings
+ options.groups.h4 = options.groups.headings
+ options.groups.h5 = options.groups.headings
+ options.groups.h6 = options.groups.headings
+ elseif options.groups.headings == "table" then
  options.groups.h1 = options.groups.headings.h1 or options.groups.h1
  options.groups.h2 = options.groups.headings.h2 or options.groups.h2
  options.groups.h3 = options.groups.headings.h3 or options.groups.h3
  options.groups.h4 = options.groups.headings.h4 or options.groups.h4
  options.groups.h5 = options.groups.headings.h5 or options.groups.h5
  options.groups.h6 = options.groups.headings.h6 or options.groups.h6
  end
+ options.groups.headings = nil
 
  return options
 end