[Feat] Automatically link glossary entries

[ByteOtter]

What this PR does / why we need it:

This PR adds a new feature to allow users to quickly link a given abbreviation or name to a glossary entry.

This will look like this in any given text:

This is a sample text about gardenlinux {{glossary:flavors}}.

Which issue(s) this PR fixes:
Fixes #gardenlinux/gardenlinux#4637

Definition of Done:

• The code is sufficiently documented
• Shared the changes with the Team so everyone is aware
• The code is appropriately tested
• Checked if the code needs to be backportet to release branches of maintained versions (perform the actual backport after the merge to main)

Special notes for your reviewer:

Release note:

[netlify]

❌ Deploy Preview for gardenlinux-docs failed.

Name	Link
🔨 Latest commit	9298e07
🔍 Latest deploy log	https://app.netlify.com/projects/gardenlinux-docs/deploys/6a4fbbb9e26525000864cb92