Sync: bring OntoPortal up-to-date with BioPortal releases 6.13.2 and onward

[jvendetti]

The purpose of this pull request is to merge BioPortal's master branch with OntoPortal's master branch to bring OntoPortal up-to-date with the latest code from the last several BioPortal releases (versions 6.13.2 through 6.14.2).

To follow are slightly abbreviated release notes for the above-mentioned release range.

6.13.2

• Add a download link for version 3.2.1 of the OntoPortal virtual appliance

6.14.0

• Migrate Bootstrap from 4.1.0 to 5.2.3
• Replace uglifier with terser to fix errors during asset precompilation
• Pin graphql to less than 2.1
• Pin base64 to 0.1.0
• Add a download link for version 3.2.2 of the OntoPortal virtual appliance

6.14.1

• Restructure the placement of the "Ontologies loading" splash element on the Browse page. This adjustment resolves an issue where site notices momentarily shift when the loading message appears.
• Replace the "Browse ontologies" split-button dropdown on the home page with a more intuitive single-button design. Users find the entire button being clickable more user-friendly than just the dropdown caret.

6.14.2

• Fix an issue that prevents users with '@' symbols in their account name from subscribing to notes emails
• Fix an issue that prevents anonymous users from getting redirected to login after clicks on "Subscribe to notes emails"
• Fix Uncaught TypeError that prevents link text toggle on notes emails subscribe / unsubscribe
• Increased the font size of search result text in the "Find an ontology" text box
• Fix some RuboCop warnings

[syphax-bouazzouni]

Seems good form me

I synced also the backend in parallel to this with:

• Sync: bring OntoPortal up-to-date with BioPortal releases 5.26.2 and onward ontologies_api#4
• Sync: bring OntoPortal up-to-date with BioPortal releases 5.26.0 and onward ncbo_cron#2

Thank for detailed description