Fix: terminal mode defaults

- Change `<Esc>` to `<C-\><C-n>` because `<Esc>` doesn't exit terminal mode by default.

- Refactor: Remove the "jj" terminal mapping because it gets misused with terminal apps that use vim-bindings, such as "less".

lua/better_escape.lua

@@ -26,8 +26,7 @@ local settings = {
         },
         t = {
             j = {
-                k = "<Esc>",
-                j = "<Esc>",
+                k = "<C-\\><C-n>",
             },
         },
         v = {