Fixing 6916: Copies of lessons don't reflect recent deletions or reordering of resources

[paulbusse]

Summary

Problem: when saving the changes made to the resources, the currentLesson was not updated.

• Added an updateCurrentLesson also when the resources save succeeds to ensure that the memory image is aligned with the changes

Reviewer guidance

• An alternate approach is to directly push the changes to currentLesson. This is probably more performant. This approach is probably more failsafe.
• There are no visible frontend changes

References

• Fixes Copies of lessons don't reflect recent deletions or reordering of resources #6916

Contributor Checklist

PR process:

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
• If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')
• If this is an important user-facing change, PR or related issue has a 'changelog' label
• If this includes an internal dependency change, a link to the diff is provided

Testing:

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• Critical user journeys are covered by Gherkin stories
• Critical and brittle code paths are covered by unit tests

Reviewer Checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[codecov]

Codecov Report

Merging #7679 (f3fe001) into develop (deb8fb3) will decrease coverage by 23.62%.
The diff coverage is 0.00%.

Impacted Files	Coverage Δ
...views/plan/LessonSummaryPage/ResourceListTable.vue	0.00% <0.00%> (ø)
...i/plugins/user/assets/src/views/FacilitySelect.vue	0.00% <0.00%> (-27.28%)	⬇️
.../plugins/user/assets/src/views/ProfileEditPage.vue	0.00% <0.00%> (-19.05%)	⬇️
...s/src/views/plan/assignments/RecipientSelector.vue	44.11% <0.00%> (-7.89%)	⬇️
kolibri/core/assets/src/state/store.js	93.75% <0.00%> (-6.25%)	⬇️
kolibri/core/assets/src/views/GlobalSnackbar.vue	12.50% <0.00%> (-5.69%)	⬇️
kolibri/core/assets/src/router.js	37.50% <0.00%> (-5.36%)	⬇️
kolibri/core/assets/src/kolibri_app.js	83.33% <0.00%> (-2.39%)	⬇️
...rd/assets/src/views/onboarding-forms/YesNoForm.vue	92.30% <0.00%> (-0.55%)	⬇️
...ews/plan/assignments/IndividualLearnerSelector.vue	17.64% <0.00%> (-0.07%)	⬇️
... and 340 more

[jonboiser]

Looks good! Thank you!