Add Support for Configuring the Position of "Back to Top" Button and Scroll Percentage Arrow in NexT Theme.

[FreemanKevin]

back2top:
  enable: true
  # Back to top in sidebar.
  sidebar: false
  # Scroll percent label in b2t button.
  scrollpercent: true

# Reading progress bar
reading_progress:
  enable: true
  # Available values: left | right
  start_at: right # This control doesn't seem to have any effect.
  # Available values: top | bottom
  position: bottom
  reversed: false
  color: "#37c6c0"
  height: 3px

I would like to request an enhancement to the NexT theme to support configuring the position (left or right) of the "Back to Top" button and the scroll percentage arrow.

Currently, these elements are fixed to the left side of the screen, and users need to manually edit CSS files to position them on the right side. It would be more convenient and user-friendly if there were configuration options in the _config.yml file to set these positions.

Specifically, I propose adding new configuration options under the back2top and scrollpercent sections that allow users to choose between left and right positions for these elements. This would help users who prefer to have these elements on the right side without needing to customize the theme's CSS.

Thank you for considering this enhancement.

[stevenjoezhang]

Currently, the position of the "Back to Top" button and Scroll Percentage Arrow changes with the left or right position of the sidebar and does not support customization. You can modify the settings for the sidebar's position.

hexo-theme-next/_config.yml

Lines 119 to 121 in da4712e

	sidebar:
	# Sidebar position. Available values: left | right
	position: left

If you need to make specific changes, you can edit the source code of the theme here:

hexo-theme-next/source/css/_mixins.styl

Line 145 in da4712e

sidebar-toggle-position(false);

Change false to true

[FreemanKevin]

ok,thanks.