Update deprecated elements in text

[braughtg]

When PreTeXt is updated to newest version (when #114 is merged) there are some deprecated elements that should be fixed. Some changes related to cardsort may already be in #65.

The following is in the output of the pretext build web output:

WARNING : * PTX:DEPRECATE: (2025-04-18) the "matches" element inside an "exercise" (or similar) to specify a drag-n-drop problem has been replaced by the "cardsort" element.  This is an entirely cosmetic change.  Until you make the change in your source, we will try to honor your intent. (16 times)
INFO    : *              located within: "ex-explore-the-issue-tracker-e" (xml:id)
INFO    : *              located within: "ex-github-repository-terminology" (xml:id)
INFO    : *              located within: "ex-workflow-step-definitions" (xml:id)
INFO    : *              located within: "ex-git-commands-summary-communities" (xml:id)
INFO    : *              located within: "ex-pull-request-b-ii" (xml:id)
INFO    : *              located within: "ex-pull-request-b-iii" (xml:id)
INFO    : *              located within: "ex-git-commands-summary-upstreaming" (xml:id)
INFO    : *              located within: "ex-git-commands-summary-upstreaming-2" (xml:id)
INFO    : *              located within: "ex-git-commands-summary-synching" (xml:id)
INFO    : *              located within: "ex-fixing-issue-process-a" (xml:id)
INFO    : *              located within: "ex-name-source-target-branches" (xml:id)
INFO    : *              located within: "ex-raw-merge-content" (xml:id)
INFO    : *              located within: "ex-raw-merge-dividers" (xml:id)
INFO    : *              located within: "ex-merge-tool-options" (xml:id)
INFO    : *              located within: "ex-git-commands-summary-merging-pt1" (xml:id)
INFO    : *              located within: "ex-git-commands-summary-merging-pt2" (xml:id)
INFO    : * --------------
WARNING : * PTX:DEPRECATE: (2025-04-23) an "@order" attribute on a "match" is deprecated and should instead be placed on the contained "premise" element(s).  If your cardsort problem is simply a 1-1 correspondence, then we will honor your intent.  If your problem is more complicated (multiple "premise" inside a "match") results may be variable and unpredictable. (2 times)

[braughtg]

I merged the updated devcontainer and pretext version in the test-new-dev-container branch from #116 into the patch-latex-for-pdf branch for #65 and the book built well for the web and pdf versions. There were a lot of LaTex warning about overfull/underfull boxes and undefined hrefs but the pdf built.

There are still some cardsort warnings and @order warnings in the web build:

warning: * PTX:DEPRECATE: (2025-04-18) the "matches" element inside an "exercise" (or similar) to specify a drag-n-drop problem has been replaced by the "cardsort" element.  This is an entirely cosmetic change.  Until you make the change in your source, we will try to honor your intent. (7 times)
*              located within: "ex-github-repository-terminology" (xml:id)
*              located within: "ex-workflow-step-definitions" (xml:id)
*              located within: "ex-git-commands-summary-communities" (xml:id)
*              located within: "ex-git-commands-summary-upstreaming" (xml:id)
*              located within: "ex-git-commands-summary-upstreaming-2" (xml:id)
*              located within: "ex-git-commands-summary-synching" (xml:id)
*              located within: "ex-name-source-target-branches" (xml:id)
* --------------
warning: * PTX:DEPRECATE: (2025-04-23) an "@order" attribute on a "match" is deprecated and should instead be placed on the contained "premise" element(s).  If your cardsort problem is simply a 1-1 correspondence, then we will honor your intent.  If your problem is more complicated (multiple "premise" inside a "match") results may be variable and unpredictable. (2 times)
successful application of /root/.ptx/2.33.1/core/xsl/pretext-html.xsl