Add sensei logo to the default learning mode template

[gabrielcaires]

Resolves #6742

Proposed Changes

• Create a sensei logo block with a link to sensei
• Add the block to the default learning mode template.
• Update the Sensei->assets->get_icon to receive width and height

Testing Instructions

Figma: 8mY8ui4zYK1Ylw2yIFi9Lx-fi-20020517_40169

1. Go to this branch
2. Reset all stored changes on the learning mode template (default)
3. Check if the sensei logo is visible on the sidebar
4. Click on the link and check if it is correct.

Supported Themes

It should work on

• Course Theme
• Divi Theme
• Astra Theme.

Screenshots

Editor

Frontend

Both the PR author and reviewer are responsible for ensuring the checklist is completed. -->

• PR title and description contain sufficient detail and accurately describe the changes
• Decisions are publicly documented
• Adheres to coding standards (PHP, JavaScript, CSS, HTML)
• All strings are translatable (without concatenation, handles plurals)
• Follows our naming conventions (P6rkRX-4oA-p2)
• New UIs are responsive and use a mobile-first approach
• New UIs match the designs
• User interface changes have been tested on the latest versions of Chrome, Firefox and Safari

[github-actions]

WordPress Dependencies Report

The github-action-wordpress-dependencies-report action has detected some script changes between the commit 9303cc3 and trunk. Please review and confirm the following are correct before merging.

Script Handle	Added Dependencies	Removed Dependencies	Total Size	Size Diff
course-theme/blocks/index.js			17.2 kB	+3.45 kB ( +25.08% 🔼 )

This comment was automatically generated by the github-action-wordpress-dependencies-report action.

[codecov]

Codecov Report

Merging #6913 (a3331ea) into trunk (fdbb06b) will decrease coverage by 1.34%.
Report is 3 commits behind head on trunk.
The diff coverage is 25.00%.

❗ Current head a3331ea differs from pull request most recent head 9303cc3. Consider uploading reports for the commit 9303cc3 to get more accurate results

@@             Coverage Diff              @@
##              trunk    #6913      +/-   ##
============================================
- Coverage     48.07%   46.74%   -1.34%     
+ Complexity    10467    10232     -235     
============================================
  Files           573      571       -2     
  Lines         44164    36914    -7250     
  Branches        402      402              
============================================
- Hits          21234    17254    -3980     
+ Misses        22603    19333    -3270     
  Partials        327      327              

Files Changed	Coverage Δ
.../blocks/course-theme/class-course-theme-blocks.php	0.00% <0.00%> (ø)
includes/blocks/course-theme/class-sensei-logo.php	0.00% <0.00%> (ø)
includes/class-sensei-assets.php	40.22% <100.00%> (+28.83%)	⬆️

... and 376 files with indirect coverage changes

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[donnapep]

This one needs some more work, as I wasn't able to get the logo to show on the frontend: