fix(lualine): use 1-char width symbol for changed (#2246)

lua/lvim/core/lualine/components.lua

@@ -35,7 +35,7 @@ return {
   diff = {
     "diff",
     source = diff_source,
-    symbols = { added = "  ", modified = "柳 ", removed = " " },
+    symbols = { added = "  ", modified = " ", removed = " " },
     diff_color = {
       added = { fg = colors.green },
       modified = { fg = colors.yellow },