quickshell: replace macOS-style shell with standalone overview module

Swap the illogical-impulse-derived components for the upstream
quickshell-overview standalone module, update Hyprland keybinds
(Super+Tab overview, rofi launcher), refresh foot colors and
starship theme, and adjust related host/module wiring.

home/starship/starship.toml

@@ -7,48 +7,58 @@ format = "$os$directory$git_branch$git_status$nix_shell$rust$c$python$cmd_durati
 [os]
 disabled = false
 style = "bold #e5e2e1"
-symbols = { NixOS = " " }
+symbols = { NixOS = "󱄅 " }
 
 [directory]
 truncation_length = 3
 truncate_to_repo = true
 style = "bold #CFFC00"
-format = "[$path]($style) "
+format = "[ $path]($style) "
 
 [git_branch]
-symbol = " "
+symbol = " "
 style = "bold #00BFFF"
 format = "on [$symbol$branch]($style) "
 
 [git_status]
 style = "bold #FF7A59"
 format = "([$all_status$ahead_behind]($style) )"
+conflicted = " "
+ahead      = " "
+behind     = " "
+diverged   = " "
+untracked  = " "
+stashed    = " "
+modified   = " "
+staged     = " [](bold #CFFC00)"
+renamed    = " "
+deleted    = " "
 
 [nix_shell]
-symbol = " "
+symbol = " "
 style = "bold #e3ff66"
 format = "via [$symbol$state]($style) "
 
 [rust]
-symbol = " "
+symbol = " "
 style = "bold #e3ff66"
 format = "[$symbol($version )]($style)"
 
 [c]
-symbol = " "
+symbol = " "
 style = "bold #00BFFF"
 format = "[$symbol($version )]($style)"
 
 [python]
-symbol = " "
+symbol = " "
 style = "bold #CFFC00"
 format = "[$symbol($version )]($style)"
 
 [cmd_duration]
 min_time = 2000
 style = "bold #FF7A59"
-format = "took [$duration]($style) "
+format = "[  $duration]($style) "
 
 [character]
-success_symbol = "[➜](bold #CFFC00) "
-error_symbol = "[➜](bold #FF7A59) "
+success_symbol = "[❯ ](bold #CFFC00) "
+error_symbol = "[❯ ](bold #FF7A59) "