📚 Add metadescriptions to some help center pages (#7821)

docs/technical-guide/developer/abstraction-levels.md

@@ -1,5 +1,6 @@
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 title: 3.07. Abstraction levels
+desc: "Penpot Technical Guide: organize data and logic in clear abstraction layers—ADTs, file ops, event-sourced changes, business rules, and data events."
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 # Code organization in abstraction levels

docs/technical-guide/developer/backend.md

@@ -1,5 +1,6 @@
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 title: 3.06. Backend Guide
+desc: "Penpot Technical Guide: Backend basics - REPL setup, loading fixtures, database migrations, and clj-kondo linting to speed development workflows."
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 # Backend guide #

docs/technical-guide/getting-started/elestio.md

@@ -1,5 +1,6 @@
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 title: 1.2 Install with Elestio
+desc: "Step-by-step guide to deploy a self-hosted Penpot on Elestio: 3-minute setup, managed DNS/SMTP/SSL/backups, Docker Compose config, updates & support."
 ---
 
 # Install with Elestio

docs/user-guide/design-systems/design-tokens.njk

@@ -1,6 +1,7 @@
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 title: Design Tokens
 order: 5
+desc: Learn how to create, manage and apply Penpot Design Tokens using W3C DTCG format, with sets, themes, aliases, equations and JSON import/export.
 ---
 
 <h1 id="design-tokens">Design Tokens</h1>