feat(cookbook): add SearchCount and MacroRec

cookbook.md

@@ -1197,6 +1197,42 @@ local Spell = {
 }
 ```
 
+### No `'cmdheight'`? No problem! SearchCount and MacroRec
+
+```lua
+local SearchCount = {
+    condition = function()
+        return vim.v.hlsearch ~= 0 and vim.o.cmdheight == 0
+    end,
+    init = function(self)
+        local ok, search = pcall(vim.fn.searchcount)
+        if ok and search.total then
+            self.search = search
+        end
+    end,
+    provider = function(self)
+        local search = self.search
+        return string.format("[%d/%d]", search.current, math.min(search.total, search.maxcount))
+    end,
+}
+```
+
+```lua
+local MacroRec = {
+    condition = function()
+        return vim.fn.reg_recording() ~= "" and vim.o.cmdheight == 0
+    end,
+    provider = " ",
+    hl = { fg = "orange", bold = true },
+    utils.surround({ "[", "]" }, nil, {
+        provider = function()
+            return vim.fn.reg_recording()
+        end,
+        hl = { fg = "green", bold = true },
+    }),
+}
+```
+
 ## Flexible Components
 
 Yes, Heirline has flexible components! And, like any other component, they