feat(corfu): more CAPFs and ergonomy changes

Add various CAPFs from cape:
- `cape-line`;
- `cape-dabbrev`;
- `cape-emoji`;
- `cape-dict`;
Fixed some CAPFs via cape:
- Make non-exclusive, purified and silent `pcomplete-completions-at-point`;
- Make non-exclusive and non-interruptable `lsp-completion-at-point`;
- Make non-exclusive `eglot-completion-at-point`;
- Make non-exclusive `comint-completion-at-point`;
Fix and improve keybindings:
- Smart `backspace` for `+tng`;
- Smart `DEL` for `+tng`;
- Smart `SPC` which quits if after separator;
- Smart `RET`;
Add depth to CAPFs, allowing ordering to be adjustable.
Remove the `+corfu-completion-styles` mechanism.
Add `,` as additional separator.
Enable in minibuffer.
Bump `cape`.

modules/completion/corfu/autoload.el

@@ -0,0 +1,18 @@
+;;; completion/corfu/autoload/commands.el -*- lexical-binding: t; -*-
+
+;;;###autoload
+(defun corfu-move-to-minibuffer ()
+  ;; Taken from corfu's README.
+  ;; TODO: extend this to other completion front-ends.
+  (interactive)
+  (let ((completion-extra-properties corfu--extra)
+        (completion-cycle-threshold completion-cycling))
+    (apply #'consult-completion-in-region completion-in-region--data)))
+
+;;;###autoload
+(defun +corfu-insert-wildcard-separator ()
+  ;; I had to rename this command so that it doesn't start with "corfu-".
+  ;; Otherwise, it does not insert the completion when +tng is enabled.
+  (interactive)
+  (setq this-command #'corfu-insert-separator)
+  (call-interactively #'corfu-insert-separator))