Move NvimTree file explorer to left side

- Change side from 'right' to 'left' in nvim-tree.lua
  - Update edgy.nvim config to place NvimTree in left panel

lua/cargdev/plugins/ssr.lua

@@ -0,0 +1,28 @@
+return {
+  "cshuaimin/ssr.nvim",
+  keys = {
+    {
+      "<leader>sR",
+      function()
+        require("ssr").open()
+      end,
+      mode = { "n", "x" },
+      desc = "Structural search/replace",
+    },
+  },
+  opts = {
+    border = "rounded",
+    min_width = 50,
+    min_height = 5,
+    max_width = 120,
+    max_height = 25,
+    adjust_window = true,
+    keymaps = {
+      close = "q",
+      next_match = "n",
+      prev_match = "N",
+      replace_confirm = "<cr>",
+      replace_all = "<leader><cr>",
+    },
+  },
+}