* Consistent license message for all the go files
* Fixing the last set of unconsistencies with the license headers
* Addressing PR review comments
* Fixing busy.go and busy_test.go license header
* Truncate strings from OpenGraph metada
* remove unwanted opengraph fields, limit to 1 image
* test helper functions
* Add truncating test
* fix typo
* change test into not comparing for the pointer value
* truncate only once
* only shorten fields that were already present
* set maximum of 5 images
* fix original tests
* fix test
* limit to 5 images
* fix typo
* place functions below types, simplify function commentaries
* Rewrite how to empty opengraph's structure
* MM-13664 Added LinkMetadata types
* MM-13664 Use LinkMetadata when populating post metadata
* Fix unused import
* Fix index name on SQLite
* Finish adding unit tests
* Address feedback
* Increase max length of URL column to 2048 characters
