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/regexplainer.lua

@@ -0,0 +1,39 @@
+return {
+  "bennypowers/nvim-regexplainer",
+  dependencies = {
+    "nvim-treesitter/nvim-treesitter",
+    "MunifTanjim/nui.nvim",
+  },
+  cmd = { "RegexplainerShow", "RegexplainerToggle" },
+  keys = {
+    { "<leader>rx", "<cmd>RegexplainerToggle<cr>", desc = "Toggle Regexplainer" },
+  },
+  opts = {
+    mode = "narrative",
+    auto = false,
+    filetypes = {
+      "html",
+      "js",
+      "cjs",
+      "mjs",
+      "ts",
+      "jsx",
+      "tsx",
+      "cjsx",
+      "mjsx",
+      "lua",
+      "python",
+      "java",
+      "go",
+      "rust",
+    },
+    debug = false,
+    display = "popup",
+    mappings = {
+      toggle = "<leader>rx",
+    },
+    narrative = {
+      separator = "\n",
+    },
+  },
+}