fix: iframe height for discussions sidebar (openedx#1404)

* fix: iframe height for discussions sidebar

* fix: increase adaptation brakepoint

fix: iframe height for discussions sidebar (openedx#1404)

* fix: iframe height for discussions sidebar

* fix: increase adaptation brakepoint

feat!: organize plugin slots as components, add footer slot (openedx#…

…1408)

BREAKING CHANGE: slot ids have been changed for consistency
* `sequence_container_plugin` -> `sequence_container_slot`
* `unit_title_plugin` -> `unit_title_slot`

Co-authored-by: Brian Smith <112954497+brian-smith-tcril@users.noreply.github.com>

fix: RTL for the upgrade notification list (openedx#1228)

fix: [RGOeX-25901] Handle rtl/ltr for hangouts (openedx#1192)

chore: bump frontend-platform (openedx#1209)

chore: bump frontend-platform (openedx#1209)

fix: change deprecated components

fix: save scroll position on exit from video xblock fullscreen mode

fix: save scroll position on exit from video xblock fullscreen mode