refactor: [docs] Remove Adsterra ads

It is found that Adsterra ads are malware and had negative impact on site
performance. Site viewers complained multiple times and this is documented
in blogs easily found by google search. So it makes sense to remove this
now and use another ad network.

Another change done is to remove ads styles from theme styles as this is
not part of the theme so should not be defined here instead use a static
style CSS file.

Author: manid2

assets/styles/_main.scss

@@ -483,52 +483,3 @@ hr {
     border: none;
   }
 }
-
-.ads {
-  display: flex;
-  flex-flow: row wrap;
-  align-items: center;
-  justify-content: space-around;
-  margin: $spacer-normal 0;
-
-  &.left {
-    justify-content: flex-start;
-  }
-
-  @media print {
-    display: none;
-  }
-
-  a {
-    text-decoration: underline;
-    font-size: $font-size-smaller;
-
-    @include themed {
-      color: t($text-brighter);
-    }
-  }
-
-  &.buttons {
-    @media ($phone) {
-      flex-direction: column;
-    }
-  }
-
-  .banner {
-    margin: $spacer-normal 0;
-
-    &--desktop {
-      @media ($phone) {
-        display: none;
-      }
-    }
-
-    &--mobile {
-      display: none;
-
-      @media ($phone) {
-        display: block;
-      }
-    }
-  }
-}

exampleSite/assets/scripts/ads.js

@@ -1,9 +1,6 @@
 googleAnalytics = "G-FX00ZBCNBW"
 enableGitInfo = true
 
-[params]
-  show_ads = true
-
 [params.git_info]
   host = "github"
   user = "manid2"

exampleSite/config/production/config.toml

@@ -6,13 +6,9 @@ toc = false
 
 Hugo theme designed for reading and printing text with dark and light modes.
 
-{{< ads >}}
-
 Features
 --------
 
-{{< ads >}}
-
 ### Distinguishing features
 
 * Designed for __reading__ and __printing__ text.
@@ -32,8 +28,6 @@ Features
   from the [HSL colors][8].
 * Website banner is supported.
 
-{{< ads >}}
-
 ### Adopted features
 
 * Minimal configuration.
@@ -50,8 +44,6 @@ Features
 * Tightly coupled with Hugo extended latest version (v1.110.0) to compile and
   generate asset bundles with pipelines, fingerprinting and minification.
 
-{{< ads >}}
-
 ### Other features
 
 These are supported due to [panr/terminal][1] theme base code but not
@@ -61,8 +53,6 @@ tested as I don't use them myself:
 * Images in post with caption.
 * Comments.
 
-{{< ads >}}
-
 Installation
 ------------
 
@@ -149,8 +139,6 @@ Local development
 hugo server --source exampleSite
 ```
 
-{{< ads >}}
-
 Credits
 -------
 
@@ -169,8 +157,6 @@ License
 
 [GNU General Public License v3.0][11]
 
-{{< ads >}}
-
 [1]: https://github.com/panr/hugo-theme-terminal
 [2]: https://github.com/adityatelange/hugo-PaperMod
 [3]: https://github.com/kaitlinmctigue/kaitlinmctigue.github.io

exampleSite/content/about.md

@@ -10,5 +10,3 @@ author = "Mani Kumar"
 
 This page shows the list of items which are not articles and don't need a
 date, author and other meta data associated. They are like simple documents.
-
-{{< ads >}}

exampleSite/content/docs/_index.md

@@ -4,5 +4,3 @@ description = "Linux developer commands collection"
 date = "2023-07-15"
 author = "Mani Kumar"
 +++
-
-{{< ads >}}

exampleSite/content/docs/commands/_index.md

@@ -4,5 +4,3 @@ description = "Blog posts"
 date = "2023-07-15"
 author = "Mani Kumar"
 +++
-
-{{< ads >}}

exampleSite/content/posts/_index.md

@@ -4,5 +4,3 @@ description = "hugo-xterm slides using reveal.js"
 date = "2022-07-15"
 author = "Mani Kumar"
 +++
-
-{{< ads >}}