Fix memory leaks in X11 display backend (#1483)

* display-x11: fix memory leaks

FcFini() was never being called, which meant FontConfig did not clean up its internal storage.

furthermore, restore a commented-out call to XftFontClose()

9acf0bb4c commented this call out, but it does not seem to cause any problems now on reload now

* feat: Move docs to website, rearrange bits (#1475)

* build(deps): bump actions/stale from 7 to 8 (#1472)

Bumps [actions/stale](https://github.com/actions/stale) from 7 to 8.
- [Release notes](https://github.com/actions/stale/releases)
- [Changelog](https://github.com/actions/stale/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/stale/compare/v7...v8)

---
updated-dependencies:
- dependency-name: actions/stale
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Add fontconfig platform checks

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: bi4k8 <bi4k8@github>
Co-authored-by: Brenden Matthews <brenden@brndn.io>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Brenden Matthews <github@brenden.brndn.io>

cmake/ConkyPlatformChecks.cmake

@@ -370,7 +370,10 @@ if(BUILD_X11)
         message(FATAL_ERROR "Unable to find Xft library")
       endif(NOT X11_Xft_FOUND)
 
-      set(conky_libs ${conky_libs} ${X11_Xft_LIB})
+      find_package(Fontconfig REQUIRED)
+
+      set(conky_libs ${conky_libs} ${X11_Xft_LIB} ${Fontconfig_LIBRARIES})
+      set(conky_includes ${conky_includes} ${FREETYPE_INCLUDE_DIR_freetype2} ${Fontconfig_INCLUDE_DIRS})
     endif(BUILD_XFT)
 
     # check for Xdbe