fix: Formatting blockquotes in datatrackers rendered markdown (#7500)

* Formatting blockquotes in datatrackers rendered markdown

* Blockquote default formatting, with overrides for legacy blockquote

* Removing unnecessary 'richtext' CSS class

---------

Co-authored-by: Matthew Holloway <Matthew Holloway>

dev/legacy/notes/notes.html

@@ -355,7 +355,7 @@ <h1>Introduction</h1>
 in one place.</p>
 <p>With my recent investigations of code analysis tools, I thought it might be
 a good idea to start collecting these in one place for the project.</p>
-<blockquote>
+<blockquote style="border-left: 0">
 <cite>Henrik &lt;henrik&#64;levkowetz.com&gt;, 23 Mar 2014</cite></blockquote>
 </div>
 <div class="section" id="code-analysis-tools">
@@ -398,8 +398,9 @@ <h2>PyChecker</h2>
 do the right thing, but once it was made to run on the datatracker code, and
 ignore the django code, it didn't report anything that PyFlakes hadn't already
 caught.</p>
-<blockquote>
-<cite>Henrik &lt;henrik&#64;levkowetz.com&gt;, 23 Mar 2014</cite></blockquote>
+<blockquote style="border-left: 0">
+    <cite>Henrik &lt;henrik&#64;levkowetz.com&gt;, 23 Mar 2014</cite>
+</blockquote>
 </div>
 </div>
 </div>

ietf/secr/templates/telechat/group.html

@@ -3,7 +3,7 @@
         <b>Does anyone have an objection to the creation of this working group being sent for EXTERNAL REVIEW?</b><br><br>
         <input type="radio" name="wg_action_status" value="1"> External Review APPROVED; "The Secretariat will send a Working Group Review announcement with a copy to new-work and place it back on the agenda for the next telechat."<br><br>
         <input type="radio" name="wg_action_status" value="2"> External Review NOT APPROVED;
-        <blockquote>
+        <blockquote style="border-left: 0">
             <input type="radio" name="wg_action_status_sub" value="1"> The Secretariat will wait for instructions from <select name="note_draft_by"></select><br>
             <input type="radio" name="wg_action_status_sub" value="2"> The IESG decides the document needs more time in INTERNAL REVIEW.  The Secretariat will put it back on the agenda for the next teleconference in the same category.<br>
             <input type="radio" name="wg_action_status_sub" value="3"> The IESG has made changes since the charter was seen in INTERNAL REVIEW, and decides to send it back to INTERNAL REVIEW the charter again.

ietf/static/css/ietf.scss

@@ -1183,3 +1183,8 @@ td.position-empty {
         }
     }
 }
+
+blockquote {
+    padding-left: 1rem;
+    border-left: solid 1px var(--bs-body-color);
+}