Update Brewfile and remove unnecessary submodules

.gitmodules

···
-[submodule "tmux/plugins/tpm"]
-	path = tmux/plugins/tpm
-	url = https://github.com/tmux-plugins/tpm
-[submodule "tmux/plugins/tmux-better-mouse-mode"]
-	path = tmux/plugins/tmux-better-mouse-mode
-	url = https://github.com/NHDaly/tmux-better-mouse-mode

Brewfile

···
 
 # Utilities
 brew "cmake"
+brew "dokku"
 brew "eza"
+brew "gh"
 brew "git"
 brew "just"
-brew "ninja"
+brew "jq"
 brew "openssl"
 brew "ripgrep"
 brew "trash"