Change fontawesome icon from Twitter logo to X logo (#895)

### Prerequisites

Put an `x` into the box(es) that apply:

- [ ] This pull request fixes a bug.
- [x] This pull request adds a feature.
- [ ] This pull request introduces breaking change.

### Description

Change fontawesome icon from Twitter logo to X logo

### Issues Resolved

N/A

### Checklist

Put an `x` into the box(es) that apply:

#### General

- [ ] Describe what changes are being made
- [x] Explain why and how the changes were necessary and implemented
respectively
- [ ] Reference issue with `#<ISSUE_NO>` if applicable

#### Resources

- [ ] If you have changed any SCSS code, run `make release` to
regenerate all CSS files

#### Contributors

- [ ] Add yourself to `CONTRIBUTORS.md` if you aren't on it already

docs/configurations.md

@@ -159,7 +159,7 @@ An example:
   url = "https://gitlab.com/johndoe/"
 [[params.social]]
   name = "Twitter"
-  icon = "fa-brands fa-twitter fa-2x"
+  icon = "fa-brands fa-x-twitter fa-2x"
   weight = 3
   url = "https://twitter.com/johndoe/"
 ```
@@ -296,7 +296,7 @@ style = "github-dark"
   url = "https://gitlab.com/johndoe/"
 [[params.social]]
   name = "Twitter"
-  icon = "fa-brands fa-twitter fa-2x"
+  icon = "fa-brands fa-x-twitter fa-2x"
   weight = 3
   url = "https://twitter.com/johndoe/"
 

exampleSite/config.toml

@@ -141,7 +141,7 @@ url = "https://gitlab.com/johndoe/"
 
 [[params.social]]
 name = "Twitter"
-icon = "fa-brands fa-twitter fa-2x"
+icon = "fa-brands fa-x-twitter fa-2x"
 weight = 3
 url = "https://twitter.com/johndoe/"