Seed (#438)

* v1 for seed

* partly added generators in seed-overview

* formatting

* added rest of generators and complex example to seed-overview

* Fixes for seed docs

* Restructure

* added tabs

* small fixes

* Add a few changes to docs

* Finish docs

---------

Co-authored-by: OleksiiKH0240 <[email protected]>

Author: AndriiSherman

src/content/docs/_meta.json

@@ -64,6 +64,11 @@
   ["kit-seed-data","Data seeding"],
   ["kit-web-mobile","Web and mobile"],
   ["drizzle-config-file", "drizzle.config.ts"],
+
+  "Seeding",
+  ["seed-overview", "Overview"],
+  ["seed-get-started", "Get Started"],
+  ["seed-functions", "Generators"],
 
   "Access your data",
   ["rqb", "Query"],