init.el: Fix safe-define-key
init.el: Add setting of smartrep
init.el: Add key bindings using smartrep-define-key
init.el: Remove key bindings from mode-specific-map
init.el: Add eval-expression-debug-on-error variable
init.el: Remove functions and key bindings from editing section

Remove enclose-in-quotes, enclose-in-back-backquotes,
enclose-in-double-quotes, enclose-in-brackets and enclose-in-braces.
init.el: Add functions and key bindings

Add seq-insert-pair, seq-insert-parentheses, seq-insert-braces,
seq-insert-brackets, seq-insert-quotes, seq-insert-backquotes and
seq-insert-double-quotes.
init.el: Add advice to move-past-close-and-reindent
init.el: Modify seq-move-beginning-line
init.el: Modify key bindings for bm
init.el: Add setting of region-bindings-mode
init.el: Add key bindings to region-bindings-mode-map

Add capitalize-region, downcase-region and upcase-region.
init.el: Remove key binding from ctl-x-map
init.el: Add setting of expand-region
init.el: Refactor code of hi-lock-mode