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/marks.lua

@@ -0,0 +1,19 @@
+return {
+  "chentoast/marks.nvim",
+  event = "VeryLazy",
+  opts = {
+    default_mappings = true,
+    builtin_marks = { ".", "<", ">", "^" },
+    cyclic = true,
+    force_write_shada = false,
+    refresh_interval = 250,
+    sign_priority = { lower = 10, upper = 15, builtin = 8, bookmark = 20 },
+    excluded_filetypes = { "NvimTree", "neo-tree", "lazy", "mason", "help" },
+    bookmark_0 = {
+      sign = "⚑",
+      virt_text = "bookmark",
+      annotate = false,
+    },
+    mappings = {},
+  },
+}