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/portal.lua

@@ -0,0 +1,25 @@
+return {
+  "cbochs/portal.nvim",
+  dependencies = { "cbochs/grapple.nvim" },
+  keys = {
+    { "<leader>pj", "<cmd>Portal jumplist backward<cr>", desc = "Portal jumplist backward" },
+    { "<leader>pk", "<cmd>Portal jumplist forward<cr>", desc = "Portal jumplist forward" },
+    { "<leader>pc", "<cmd>Portal changelist backward<cr>", desc = "Portal changelist backward" },
+    { "<leader>pq", "<cmd>Portal quickfix backward<cr>", desc = "Portal quickfix backward" },
+  },
+  opts = {
+    escape = {
+      ["<esc>"] = true,
+      ["q"] = true,
+    },
+    window_options = {
+      relative = "cursor",
+      width = 80,
+      height = 4,
+      col = 2,
+      focusable = false,
+      border = "rounded",
+      noautocmd = true,
+    },
+  },
+}