Change telescope to dropdown, telescope now uses select_drow action, remove the hide telescope borders in tokyonight, change visible dirs and tokens in lspsaga lualine status, clangd header/source toggle now also uses drop over edit

nvim/lua/language_servers/clangd.lua

@@ -1 +1,43 @@
-return {}
+local function switch_between_header_and_source(bufnr)
+    local util = require("lspconfig/util")
+    bufnr = util.validate_bufnr(bufnr)
+    local clangd_client = util.get_active_client_by_name(bufnr, "clangd")
+    local params = { uri = vim.uri_from_bufnr(bufnr) }
+    -- invert this with an early return
+    if not clangd_client then
+        print "method textDocument/switchSourceHeader is not supported by any servers active on the current buffer"
+        return
+    end
+
+    clangd_client.request("textDocument/switchSourceHeader", params, function(err, result)
+        if err then
+            error(tostring(err))
+        end
+        if not result then
+            print("Corresponding file cannot be determined")
+            return
+        end
+        vim.api.nvim_command("drop " .. vim.uri_to_fname(result))
+    end, bufnr)
+end
+
+local M = {
+    commands = {
+        ClangdSwitchSourceHeader = {
+            function()
+                switch_between_header_and_source(0)
+            end,
+            description = "Switch between source/header",
+        },
+    },
+}
+
+function M.post_setup()
+    require("utils").add_keymaps({
+        n = {
+            ["<leader>ko"] = { cmd = ":ClangdSwitchSourceHeader<CR>" }
+        },
+    })
+end
+
+return M