feat(git): add grbia alias for interactive rebase with autosquash

`grbia` runs `git rebase --interactive --autosquash`, following the
existing `grbmia` naming. It has been proposed several times over the
years; this lands it and credits everyone who tried.

Fixes #13865

Co-authored-by: Tushar Mathur <194482+tusharmath@users.noreply.github.com>
Co-authored-by: Thomas Raimond <10564970+ThamosIO@users.noreply.github.com>
Co-authored-by: Clément <59260989+clegoffic@users.noreply.github.com>
Co-authored-by: Gaurav Yadav <160158213+MeGaurav4@users.noreply.github.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/key-bindings.zsh

@@ -110,23 +110,6 @@ bindkey -M emacs '^[[1;5D' backward-word
 bindkey -M viins '^[[1;5D' backward-word
 bindkey -M vicmd '^[[1;5D' backward-word
 
-# [Keypad] - application mode (enabled above) makes the keypad send escape
-# sequences instead of characters, so map them back to the plain keys
-() {
-  local seq key
-  local -A keypad=(
-    '^[Op' '0' '^[Oq' '1' '^[Or' '2' '^[Os' '3' '^[Ot' '4'
-    '^[Ou' '5' '^[Ov' '6' '^[Ow' '7' '^[Ox' '8' '^[Oy' '9'
-    '^[On' '.' '^[Ol' ',' '^[Ok' '+' '^[Om' '-' '^[Oj' '*'
-    '^[Oo' '/' '^[OX' '=' '^[OM' '^M'
-  )
-  for seq key in "${(@kv)keypad}"; do
-    bindkey -M emacs -s "$seq" "$key"
-    bindkey -M viins -s "$seq" "$key"
-    bindkey -M vicmd -s "$seq" "$key"
-  done
-}
-
 
 bindkey '\ew' kill-region                             # [Esc-w] - Kill from the cursor to the mark
 bindkey -s '\el' '^q ls\n'                            # [Esc-l] - run command: ls

plugins/git/README.md

@@ -156,6 +156,7 @@ plugins=(... git)
 | `grba`                 | `git rebase --abort`                                                                                                            |
 | `grbc`                 | `git rebase --continue`                                                                                                         |
 | `grbi`                 | `git rebase --interactive`                                                                                                      |
+| `grbia`                | `git rebase --interactive --autosquash`                                                                                         |
 | `grbmi`                | `git rebase $(git_main_branch) --interactive`                                                                                   |
 | `grbmia`               | `git rebase $(git_main_branch) --interactive --autosquash`                                                                      |
 | `grbo`                 | `git rebase --onto`                                                                                                             |

plugins/git/git.plugin.zsh

@@ -357,6 +357,7 @@ alias grb='git rebase'
 alias grba='git rebase --abort'
 alias grbc='git rebase --continue'
 alias grbi='git rebase --interactive'
+alias grbia='git rebase --interactive --autosquash'
 alias grbo='git rebase --onto'
 alias grbs='git rebase --skip'
 alias grbd='git rebase $(git_develop_branch)'