Updates lang codes

Author: Sgtpluck

_pages/oidc/authorization.md

@@ -200,7 +200,7 @@ In an **unsuccessful authorization**, the URI will contain the parameters `error
             <h4 class="clearfix">locale</h4><span class="float-left text-italic">optional</span>
           </div>
           <div class="grid-col-7">
-            <p> If you know that a user would prefer one of our alternative language translations (currently Spanish or French), you can include the <code class="language-plaintext highlighter-rouge">locale</code> parameter to specify the language Login.gov should use (either <code class="language-plaintext highlighter-rouge">es</code> for Spanish or <code class="language-plaintext highlighter-rouge">fr</code> for French).</p>
+            <p>If you know that a user would prefer one of our alternative language translations (currently Spanish or French), you can include the <code class="language-plaintext highlighter-rouge">locale</code> parameter to specify the language Login.gov should use (either <code class="language-plaintext highlighter-rouge">ES</code> for Spanish or <code class="language-plaintext highlighter-rouge">FR</code> for French).</p>
           </div>
         </div>
       </div>

_pages/oidc/authorization/pkce.md

@@ -262,7 +262,7 @@ In an **unsuccessful authorization**, the URI will contain the parameters `error
         </div>
         <div class="grid-col-7">
           <p>
-            If you know that a user would prefer one of our alternative language translations (currently Spanish or French), you can include the <code class="language-plaintext highlighter-rouge">locale</code> parameter to specify the language Login.gov should use (either <code class="language-plaintext highlighter-rouge">es</code> for Spanish or <code class="language-plaintext highlighter-rouge">fr</code> for French).
+            If you know that a user would prefer one of our alternative language translations (currently Spanish or French), you can include the <code class="language-plaintext highlighter-rouge">locale</code> parameter to specify the language Login.gov should use (either <code class="language-plaintext highlighter-rouge">ES</code> for Spanish or <code class="language-plaintext highlighter-rouge">FR</code> for French).
           </p>
         </div>
       </div>

_pages/saml/authentication.md

@@ -92,7 +92,7 @@ A proofed identity request at AAL2, with phishing resistent MFA, for email, phon
           <h4>Language Selection</h4>
         </div>
         <div class="grid-col-7">
-          <p>If you know that a user would prefer one of our alternative language translations (currently Spanish or French), you can include the <code class="language-plaintext highlighter-rouge">locale</code> parameter to specify the language Login.gov should use (either <code class="language-plaintext highlighter-rouge">es</code> for Spanish or <code class="language-plaintext highlighter-rouge">fr</code> for French), e.g.:</p>
+          <p>If you know that a user would prefer one of our alternative language translations (currently Spanish or French), you can include the <code class="language-plaintext highlighter-rouge">locale</code> parameter to specify the language Login.gov should use (either <code class="language-plaintext highlighter-rouge">ES</code> for Spanish or <code class="language-plaintext highlighter-rouge">FR</code> for French), e.g.:</p>
           <p><code class="language-plaintext highlighter-rouge">https://idp.int.identitysandbox.gov/api/saml/auth2023?SAMLRequest=${SAML_REQUEST}&amp;locale=es</code></p>
         </div>
       </div>