perf(component): optimize left padding in component builder

Author: mehalter

lua/astroui/status/component.lua

@@ -427,7 +427,11 @@ end
 -- @usage local heirline_component = require("astroui.status").components.builder({ { provider = "file_icon", opts = { padding = { right = 1 } } }, { provider = "filename" } })
 function M.builder(opts)
   opts = extend_tbl({ padding = { left = 0, right = 0 } }, opts)
-  local children = {}
+  local children, offset = {}, 0
+  if opts.padding.left > 0 then -- add left padding
+    table.insert(children, { provider = status_utils.pad_string(" ", { left = opts.padding.left - 1 }) })
+    offset = offset + 1
+  end
   for key, entry in pairs(opts) do
     if
       type(key) == "number"
@@ -437,11 +441,9 @@ function M.builder(opts)
     then
       entry.provider = provider[entry.provider](entry.opts)
     end
+    if type(key) == "number" then key = key + offset end
     children[key] = entry
   end
-  if opts.padding.left > 0 then -- add left padding
-    table.insert(children, 1, { provider = status_utils.pad_string(" ", { left = opts.padding.left - 1 }) })
-  end
   if opts.padding.right > 0 then -- add right padding
     table.insert(children, { provider = status_utils.pad_string(" ", { right = opts.padding.right - 1 }) })
   end