Add more shortcuts for editor::OrganizeImports (#26932)

Follow-up to:
- https://github.com/zed-industries/zed/pull/25793

Release Notes:

- N/A

assets/keymaps/default-linux.json

@@ -107,6 +107,7 @@
       "ctrl-a": "editor::SelectAll",
       "ctrl-l": "editor::SelectLine",
       "ctrl-shift-i": "editor::Format",
+      "alt-shift-o": "editor::OrganizeImports",
       // "cmd-shift-left": ["editor::SelectToBeginningOfLine", {"stop_at_soft_wraps": true, "stop_at_indent": true }],
       // "ctrl-shift-a": ["editor::SelectToBeginningOfLine", { "stop_at_soft_wraps": true, "stop_at_indent": true }],
       "shift-home": ["editor::SelectToBeginningOfLine", { "stop_at_soft_wraps": true, "stop_at_indent": true }],

assets/keymaps/linux/jetbrains.json

@@ -31,6 +31,7 @@
       "shift-alt-up": "editor::MoveLineUp",
       "shift-alt-down": "editor::MoveLineDown",
       "ctrl-alt-l": "editor::Format",
+      "ctrl-alt-o": "editor::OrganizeImports",
       "shift-f6": "editor::Rename",
       "ctrl-alt-left": "pane::GoBack",
       "ctrl-alt-right": "pane::GoForward",

assets/keymaps/macos/jetbrains.json

@@ -29,6 +29,7 @@
       "shift-alt-up": "editor::MoveLineUp",
       "shift-alt-down": "editor::MoveLineDown",
       "cmd-alt-l": "editor::Format",
+      "ctrl-alt-o": "editor::OrganizeImports",
       "shift-f6": "editor::Rename",
       "cmd-[": "pane::GoBack",
       "cmd-]": "pane::GoForward",