Added kulala.lua plugin

lua/plugins/kulala.lua

@@ -0,0 +1,14 @@
+return {
+    "mistweaverco/kulala.nvim",
+    keys = {
+        { "<leader>Rs", desc = "Send request" },
+        { "<leader>Ra", desc = "Send all requests" },
+        { "<leader>Rb", desc = "Open scratchpad" },
+    },
+    ft = { "http", "rest" },
+    opts = {
+        global_keymaps = false,
+        global_keymaps_prefix = "<leader>R",
+        kulala_keymaps_prefix = "",
+    },
+}