L1->L2 Migration guide (#55)

* Add index page

* Add structure

* Add table

* Update table

* Update table

* Add links

* Remove page

* Add tabs and code snippets for stores

* Restructure sections

* Add code snippets

* Update default tabs

* Add code snippets

* Add endpoint snippets

* Add snippet titles

* Add footnote

* Add scroll margin for footnotes

* Add collapsible sections

* Update title

* Add adminition

* Add tip

* Add requirement

* Remove note

* Add config descriptions and snippets

* Add next steps

* Update modifiers and blacklist

* Update snippets

* Add tests

* Add tests

* Add deployment snippet

* Add snippets

* Add script to deploy on GitHub pages

* Add summary

* Add comment

* Add comment

* Fix typo

* Apply feedback

* Apply feedback

* Clean up tests

* Fix typo

* Apply suggestions from code review

Co-authored-by: Muhammad Talha <13951043+TalhaMaliktz@users.noreply.github.com>

* Apply feedback

* Fix variable name

* Update docs/building-on-lisk/migration-guide.mdx

Co-authored-by: Muhammad Talha <13951043+TalhaMaliktz@users.noreply.github.com>

---------

Co-authored-by: Muhammad Talha <13951043+TalhaMaliktz@users.noreply.github.com>

deploy-github.sh

@@ -0,0 +1,2 @@
+export LISK_DOC_BASE_URL=/lisk-documentation/
+USE_SSH=true yarn deploy