Add Rosé Pine Dawn (v3.0) (#281)

* Add Rosé Pine Dawn

* Improve rosepine-dawn.lua

---------

Co-authored-by: Sidhanth Rathod <siduck@tutanota.com>

lua/base46/themes/rosepine-dawn.lua

@@ -0,0 +1,77 @@
+-- credits to original theme https://rosepinetheme.com/
+-- this is a modified version of it
+
+---@type Base46Table
+local M = {}
+
+-- UI
+M.base_30 = {
+  white = "#575279",
+  black = "#faf4ed", -- usually your theme bg
+  darker_black = "#f2e9e1", -- 6% darker than black
+  black2 = "#EDE1D6", -- 6% lighter than black
+  one_bg = "#EADCCF", -- 10% lighter than black
+  one_bg2 = "#E4D2C1", -- 6% lighter than one_bg2
+  one_bg3 = "#DEC7B3", -- 6% lighter than one_bg3
+  grey = "#b0acb9", -- 40% lighter than black (the % here depends so choose the perfect grey!)
+  grey_fg = "#A39EAD", -- 10% lighter than grey
+  grey_fg2 = "#9893A4", -- 5% lighter than grey
+  light_grey = "#908B9D",
+  red = "#b4637a",
+  baby_pink = "#eb6f92",
+  pink = "#eb6f92",
+  line = "#EADCCF", -- 15% lighter than black
+  green = "#286983",
+  vibrant_green = "#3e8fb0",
+  nord_blue = "#459BBD",
+  blue = "#56949f",
+  yellow = "#ea9d34",
+  sun = "#f6c177",
+  purple = "#907aa9",
+  dark_purple = "#c4a7e7",
+  teal = "#3e8fb0",
+  orange = "#ea9d34",
+  cyan = "#d7827e",
+  statusline_bg = "#f2e9e1",
+  lightbg = "#EADCCF",
+  pmenu_bg = "#907aa9",
+  folder_bg = "#56949f",
+}
+
+-- check https://github.com/chriskempson/base16/blob/master/styling.md for more info
+M.base_16 = {
+  base00 = "#faf4ed",
+  base01 = "#fffaf3",
+  base02 = "#f2e9e1",
+  base03 = "#9893a5",
+  base04 = "#797593",
+  base05 = "#575279",
+  base06 = "#423e5b",
+  base07 = "#dfdad9",
+  base08 = "#b4637a",
+  base09 = "#ea9d34",
+  base0A = "#d7827e",
+  base0B = "#56949f",
+  base0C = "#286983",
+  base0D = "#907aa9",
+  base0E = "#ea9d34",
+  base0F = "#A39EAD",
+}
+
+-- set the theme type whether is dark or light
+M.type = "light"
+
+M.polish_hl = {
+  syntax = {
+    Type = { fg = M.base_30.teal },
+  },
+
+  treesitter = {
+    ["@type.builtin"] = { fg = M.base_30.teal, bold = true },
+    ["@variable.parameter"] = { fg = M.base_30.purple },
+  },
+}
+
+M = require("base46").override_theme(M, "rosepine-dawn")
+
+return M