feat: darkplus lualine theme

lua/lualine/themes/darkplus.lua

@@ -0,0 +1,31 @@
+local colors = {
+  blue = "#569cd6",
+  green = "#6a9955",
+  purple = "#c586c0",
+  red = "#d16969",
+  yellow = "#dcdcaa",
+  yellow_orange = "#d7ba7d",
+  orange = "#ce9178",
+  fg = "#b4b4b4",
+  bg = "#252525",
+  gray1 = "#252525",
+  gray2 = "#252525",
+  gray3 = "#252525",
+}
+
+return {
+  normal = {
+    a = { fg = colors.fg, bg = colors.blue, gui = "bold" },
+    b = { fg = colors.fg, bg = colors.bg },
+    c = { fg = colors.fg, bg = colors.bg },
+  },
+  insert = { a = { fg = colors.fg, bg = colors.green, gui = "bold" } },
+  visual = { a = { fg = colors.fg, bg = colors.purple, gui = "bold" } },
+  command = { a = { fg = colors.fg, bg = colors.cyan, gui = "bold" } },
+  replace = { a = { fg = colors.fg, bg = colors.red, gui = "bold" } },
+  inactive = {
+    a = { fg = colors.gray1, bg = colors.bg, gui = "bold" },
+    b = { fg = colors.gray1, bg = colors.bg },
+    c = { fg = colors.gray1, bg = colors.bg },
+  },
+}