Update jQuery version

[mlxd]

Context: Recently, Dependabot issued an alert for docs/xanadu_theme/static/jquery.js and recommended an upgrade to a minimum jQuery version of 3.5.0. This PR addresses the security vulnerability and updates the instructions for building the Sphinx documentation.

Description of the Change:

• The static copies of jQuery and Bootstrap in the CSS theme have been removed (these are pulled from a CDN instead).

Benefits: Fixes dependabot security alert

Possible Drawbacks: None

Related GitHub Issues: None. [ch7715]

[codecov]

Codecov Report

Merging #118 (b2c9941) into master (bdf8aa8) will not change coverage.
The diff coverage is n/a.

❗ Current head b2c9941 differs from pull request most recent head 4754d60. Consider uploading reports for the commit 4754d60 to get more accurate results

@@           Coverage Diff           @@
##           master     #118   +/-   ##
=======================================
  Coverage   98.14%   98.14%           
=======================================
  Files           3        3           
  Lines          54       54           
=======================================
  Hits           53       53           
  Misses          1        1           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update bdf8aa8...4754d60. Read the comment docs.

[trbromley]

Thanks @mlxd!

[josh146]

Flyby comment purely to say that these are my favourite types of PRs 🙌

[co9olguy]

We should really backport this fix to any other repos that have the same legacy theme

[josh146]

We should really backport this fix to any other repos that have the same legacy theme

Definitely time to move the theme to a central repository :(

[github-actions]

Test Report (C++) on Ubuntu

    1 files  ±0      1 suites  ±0   0s ⏱️ ±0s
118 tests ±0  118 ✔️ ±0  0 💤 ±0  0 ❌ ±0 
370 runs  ±0  370 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit a1bb111. ± Comparison against base commit a1bb111.

♻️ This comment has been updated with latest results.