Add buffer deletion command and update source keymap, configure lsp_lines, null-ls, and trouble plugins

after/plugin/quickloc-fix.lua

@@ -0,0 +1,39 @@
+local keymap = vim.keymap.set
+local trouble = require("trouble")
+
+vim.api.nvim_create_autocmd('DiagnosticChanged', {
+    callback = function()
+        vim.diagnostic.setqflist({ open = false })
+        vim.diagnostic.setloclist({ open = false })
+    end,
+})
+
+function QuickFixToggle()
+    if trouble.is_open() then
+        trouble.close()
+    else
+        trouble.open({
+            mode = "quickfix"
+        })
+    end
+end
+
+function LocationListToggle()
+    if trouble.is_open() then
+        trouble.close()
+    else
+        trouble.open({
+            mode = "loclist"
+        })
+    end
+end
+
+-- Quickfix
+keymap("n", "<leader>qq", ":lua QuickFixToggle()<CR>", { desc = "[Q]uickfix [Q]uick" })
+keymap("n", "<leader>qn", "<cmd>cnext<CR>zz", { desc = "[Q]uick [N]ext" })
+keymap("n", "<leader>qp", "<cmd>cprev<CR>zz", { desc = "[Q]uick [P]revious" })
+
+-- Location List
+keymap("n", "<leader>ll", ":lua LocationListToggle()<CR>", { desc = "[L]ocation [L]ist" })
+keymap("n", "<leader>ln", "<cmd>lnext<CR>zz", { desc = "[L]ocation [N]ext" })
+keymap("n", "<leader>lp", "<cmd>lprev<CR>zz", { desc = "[L]ocation [P]revious" })