chore: update config with shared headings

lua/rose-pine/config.lua

@@ -0,0 +1,49 @@
+local palette = require('rose-pine.palette')
+
+local config = {
+	bold_vert_split = vim.g.rose_pine_bold_verical_split_line or false,
+	no_background = vim.g.rose_pine_disable_background or false,
+	no_italics = vim.g.rose_pine_disable_italics or false,
+	colors = {
+		punctuation = palette.subtle,
+		comment = palette.subtle,
+		hint = palette.iris,
+		info = palette.foam,
+		warn = palette.gold,
+		error = palette.love,
+
+		-- TODO: Expose these once matched with syntax and cmp kind
+		-- variable = '',
+		-- class = '',
+		-- interface = '',
+		-- ['function'] = '',
+		-- method = '',
+
+		---@type string|table<string, string>
+		headings = {
+			h1 = palette.foam,
+			h2 = palette.foam,
+			h3 = palette.foam,
+			h4 = palette.foam,
+			h5 = palette.foam,
+			h6 = palette.foam,
+		},
+	},
+}
+
+local colors = vim.g.rose_pine_colors or {}
+
+if type(colors.headings) == 'string' then
+	colors.headings = {
+		h1 = colors.headings,
+		h2 = colors.headings,
+		h3 = colors.headings,
+		h4 = colors.headings,
+		h5 = colors.headings,
+		h6 = colors.headings,
+	}
+end
+
+config.colors = vim.tbl_deep_extend('force', config.colors, colors)
+
+return config