changes " to ' in uppcss files to work around bug in pp

http/src/css/base.uppcss

@@ -114,7 +114,7 @@ body {
 
   /* Geometric Humanist stack from https://modernfontstacks.com */
   font-family:
-    Avenir, Montserrat, Corbel, "URW Gothic", source-sans-pro, sans-serif;
+    Avenir, Montserrat, Corbel, 'URW Gothic', source-sans-pro, sans-serif;
 }
 
 small {
@@ -442,11 +442,11 @@ form {
     margin-block-end: var(--spacing-block-xs);
   }
 
-  * + :is(label, input[type="submit"], button) {
+  * + :is(label, input[type='submit'], button) {
     margin-block-start: var(--spacing-block-md);
   }
 
-  :is(input[type="submit"], input[type="button"], button) {
+  :is(input[type='submit'], input[type='button'], button) {
     padding-inline: var(--spacing-inline-sm);
     max-width: max-content;
     &:not(dialog *) {
@@ -454,7 +454,7 @@ form {
     }
   }
 
-  :is(input[type="email"], input[type="text"], select) {
+  :is(input[type='email'], input[type='text'], select) {
     max-width: 100%;
     width: 16rem;
   }

http/src/css/hcard.uppcss

@@ -27,7 +27,7 @@
   top: -6rem;
 
   /* A content value is needed to get the ::after to render */
-  content: "";
+  content: '';
 }
 
 @media (min-width: 36rem) {
@@ -37,8 +37,8 @@
     grid-template-columns: subgrid; /** Subgrid of main column layout */
     grid-template-rows: min-content 1fr;
     grid-template-areas:
-      "empty heading"
-      "photo text";
+      'empty heading'
+      'photo text';
     column-gap: var(--spacing-block-sm);
   }
 

http/src/css/otp.uppcss

@@ -23,7 +23,7 @@
     margin: 0;
   }
 
-  input[type="submit"] {
+  input[type='submit'] {
     max-width: max-content;
   }
 }

http/src/css/reset.uppcss

@@ -29,8 +29,8 @@ dd {
 }
 
 /* Remove list styles on ul, ol elements with a list role, which suggests default styling will be removed */
-ul[role="list"],
-ol[role="list"] {
+ul[role='list'],
+ol[role='list'] {
   list-style: none;
 }