vim-patch:9.0.0265: no good reason why the "gf" command isn't in the tiny version (#20964)

Problem:    No good reason why the "gf" command is not in the tiny version.
Solution:   Graduate the file_in_path feature.

f80f40a55c

Co-authored-by: Bram Moolenaar <Bram@vim.org>

src/nvim/window.c

@@ -585,6 +585,7 @@ wingotofile:
       cmdmod.cmod_tab = tabpage_index(curtab) + 1;
       nchar = xchar;
       goto wingotofile;
+
     case 't':                       // CTRL-W gt: go to next tab page
       goto_tabpage((int)Prenum);
       break;