Git submodules awareness

[1buran]

Hi!

Recently deadgrep stopped aware git submodules: when I run search inside git submodule, dedagrep will search in outer project space (main git repo).

For example, I have such project structure:

main_project_repo (main git repo)
 \ - - apps (git submodules)
        \ -- app1 (git submodule)
        \ -- app2 (git submodule)
  ...... ...... 

in my .emacs I have such dedagrep settings:

(global-set-key (kbd "<f5>") #'deadgrep)  

so, e.g. my current workdir is ~/main_project_repo/apps/app1 and when I press <f5> deadgrep ask me about "Search term" and then, it will search in ~/main_project_repo/ instead of expected ~/main_project_repo/apps/app1. It's little bit annoying cos every time when I want to search smth in git submodule (limit search to submodule directory), it will run in outer, main project directory and I need to do extra actions: change the directory to subdirectory of current submodule...

---

deadgrep-debug output:

Platform: gnu/linux                                                                                                                                                                                              
Emacs version: 27.1                                                                                                                                                                                              
Command: rg --color=ansi --line-number --no-heading --with-filename --fixed-strings --smart-case -- sdfsdfsdfsdf .                                                                                               
default-directory: "~/projects/bigproject/"                                                                                                                                                                      
                                                                                                                                                                                                                 
Initial output from ripgrep:                                                                                                                                                                                     
nil                                                                                                                                                                                                              

ripgrep version: 12.1.1

P.S.
Thanks a lot for such a cool tool, it really really save a lot of my working time! =)