Properly apply `relative_url` filter to internal links in header overlay `actions` array

Remove deprecated `base_path` include helper

Release 4.13.0 💎

Add Romanian localized UI text strings

Update ui-text.yml with Romanian translation (#1814)

* Update ui-text.yml with Romanian translation

Added the translations for Romanian

* Update ui-text.yml

Corrected „less_than” with a proper translation for the context where it is being used

* Update docs

Added Romanian to the languages list

Add social icon colors for Reddit and Mastodon

Update CHANGELOG and history

Improve footer link flexibility

Deprecate hardcoded footer links in favor or new `footer.links` array for any link and in any order. All of Font Awesome's icons are available for use.

```
footer:
  links:
    - label: "Twitter"
      icon: "fab fa-fw fa-twitter-square"
      url: "https://twitter.com/username"
    - label: "GitHub"
      icon: "fab fa-fw fa-github"
      url: "https://github.com/username"
    - label: "Instagram"
      icon: "fab fa-fw fa-instagram"
      url: "https://instagram.com/username"
```

Improve author link flexibility

Deprecate social networking links in `_config.yml` in favor or new `author.links` array for any link and in any order. All of Font Awesome's icons are available for use.

```
author:
  links:
    - label: "Your Website"
      icon: "fas fa-fw fa-link"
      url: "https://your-site.com"
    - label: "Twitter"
      icon: "fab fa-fw fa-twitter-square"
      url: "https://twitter.com/username"
    - label: "GitHub"
      icon: "fab fa-fw fa-github"
      url: "https://github.com/username"
    - label: "Instagram"
      icon: "fab fa-fw fa-instagram"
      url: "https://instagram.com/username"
```

Fixes #1581

Add header `actions` array support for multiple call to action links

```
header:
  overlay_image: /assets/images/unsplash-image-1.jpg
  og_image: /assets/images/page-header-og-image.png
  caption: "Photo credit: [**Unsplash**](https://unsplash.com)"
  actions:
    - label: "Learn More"
      url: "https://unsplash.com"
```

Fixes #1461

Add support to gallery helper for defining column layout

e.g. `{% include gallery id="gallery" layout="half" caption="2 column gallery caption" %}

Fixes #1821

Fix sidebar navigation list toggle.

Prettier managled `@include breakpoint` media queries causing the input/checkbox toggle hack styles to go missing.

Fixes #1819

Update CHANGELOG and history

Merge branch 'master' of https://github.com/mmistakes/minimal-mistakes

Place `:hover` declarations after `:visited` to fix hover animation

Fixes #1820

Update CHANGELOG and history

Release 4.12.2 💎

Update CHANGELOG and history

Add Italian translation for search (#1793)

Adjust toc indents