refactor lualine resolution

- create util to determine theme just by the name
- read config from colorschemes.json

lua/lualine/themes/duckbones.lua

@@ -1,34 +1 @@
--- This file is auto-generated by shipwright.nvim
-local common_fg = "#9A9FBC"
-local inactive_bg = "#222536"
-local inactive_fg = "#F0F5C4"
-
-return {
-	normal = {
-		a = { bg = "#5C6489", fg = common_fg, gui = "bold" },
-		b = { bg = "#3C415B", fg = common_fg },
-		c = { bg = "#2B2F44", fg = "#EBEFC0" },
-	},
-
-	insert = {
-		a = { bg = "#2A3E48", fg = common_fg, gui = "bold" },
-	},
-
-	command = {
-		a = { bg = "#4D3191", fg = common_fg, gui = "bold" },
-	},
-
-	visual = {
-		a = { bg = "#37382D", fg = common_fg, gui = "bold" },
-	},
-
-	replace = {
-		a = { bg = "#311C1A", fg = common_fg, gui = "bold" },
-	},
-
-	inactive = {
-		a = { bg = inactive_bg, fg = inactive_fg, gui = "bold" },
-		b = { bg = inactive_bg, fg = inactive_fg },
-		c = { bg = inactive_bg, fg = inactive_fg },
-	},
-}
+return require("zenbones.util").get_lualine_theme("duckbones")