made _apply_bindings() work with tmux 3.2 stock bindings, fixes #472

.tmux.conf

@@ -785,9 +785,13 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #
 #   if [ -n "$command" ]; then
 #     if _is_enabled "$tmux_conf_copy_to_os_clipboard"; then
-#       perl -p -i -e "s/\bcopy-selection(-and-cancel)?\b/copy-pipe\1 '$command'/g" "$cfg"
+#       perl -p -i -e "s/(?!.*?$command)\bcopy-(?:selection|pipe)(-and-cancel)?\b/copy-pipe\1 '$command'/g" "$cfg"
 #     else
-#       perl -p -i -e "s/\bcopy-pipe(-and-cancel)?\b\s+(\"|')?$command\2/copy-selection\1/g" "$cfg"
+#       if [ $_tmux_version -ge 320 ]; then
+#         perl -p -i -e "s/\bcopy-pipe(-and-cancel)?\b\s+(\"|')?$command\2?/copy-pipe\1/g" "$cfg"
+#       else
+#         perl -p -i -e "s/\bcopy-pipe(-and-cancel)?\b\s+(\"|')?$command\2?/copy-selection\1/g" "$cfg"
+#       fi
 #     fi
 #   fi
 #
@@ -998,7 +1002,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #   tmux_conf_theme_prefix_bg=${tmux_conf_theme_prefix_bg:-none}
 #   tmux_conf_theme_prefix_attr=${tmux_conf_theme_prefix_attr:-none}
 #
-#   tmux_conf_theme_mouse=${tmux_conf_theme_mouse:-↗}                            # U+2197
+#   tmux_conf_theme_mouse=${tmux_conf_theme_mouse:-↗}                             # U+2197
 #   tmux_conf_theme_mouse_fg=${tmux_conf_theme_mouse_fg:-none}
 #   tmux_conf_theme_mouse_bg=${tmux_conf_theme_mouse_bg:-none}
 #   tmux_conf_theme_mouse_attr=${tmux_conf_theme_mouse_attr:-none}