Bug 1665156 - commonDialog.xhtml: Explicitly set input type 'text' to fix broken style in SubDialog. r=Gijs

Differential Revision: https://phabricator.services.mozilla.com/D90364

toolkit/components/prompts/content/commonDialog.xhtml

@@ -71,7 +71,7 @@
       </div>
       <div id="loginContainer" class="dialogRow" hidden="hidden">
         <xul:label id="loginLabel" value="&editfield0.label;" control="loginTextbox"/>
-        <input id="loginTextbox"/>
+        <input type="text" id="loginTextbox"/>
       </div>
       <div id="password1Container" class="dialogRow" hidden="hidden">
         <xul:label id="password1Label" value="&editfield1.label;" control="password1Textbox"/>