allow closing of overseer log with toggle keymap

lua/custom/plugins/overseer.lua

@@ -12,10 +12,25 @@ return {
       },
     }
 
+    -- Reference: overseer.nvim/lua/overseer/window.lua
+    local function is_open()
+      for _, winid in ipairs(vim.api.nvim_tabpage_list_wins(0)) do
+        local bufnr = vim.api.nvim_win_get_buf(winid)
+        if vim.bo[bufnr].filetype == 'OverseerList' then
+          return true
+        end
+      end
+      return false
+    end
+
     -- Display status info about tasks
     vim.keymap.set('n', '<leader>ol', function()
       overseer.toggle { winid = 0 }
+      if is_open() then
         vim.cmd.winc '_'
+      else
+        vim.api.nvim_buf_delete(vim.api.nvim_get_current_buf(), {})
+      end
     end, { desc = '[O]verseer [L]og' })
     -- Run task by listing all in floating
     vim.keymap.set('n', '<leader>or', '<cmd>OverseerRun<cr>', { desc = '[O]verseer [R]un' })