Apply stylelint fixes to SCSS

The stylelint rules are extremely minimal so far, so this just fixes
some single-quotes to double-quotes.

tildes/scss/_spectre_variables.scss

@@ -1,7 +1,7 @@
 // This file should be imported at the top of Spectre's _variables.scss
 // Since Spectre uses !default declarations, these values won't be overwritten
 
-@import 'variables';
+@import "variables";
 
 $primary-color: #268bd2;  // Solarized
 

tildes/scss/modules/_label.scss

@@ -20,7 +20,7 @@
 
 .label-topic-tag-spoiler,
 .label-topic-tag-nsfw,
-.label-topic-tag[class*='label-topic-tag-nsfw-'],
-.label-topic-tag[class*='label-topic-tag-spoiler-'] {
+.label-topic-tag[class*="label-topic-tag-nsfw-"],
+.label-topic-tag[class*="label-topic-tag-spoiler-"] {
   font-weight: bold;
 }

tildes/scss/styles.scss

@@ -1,46 +1,46 @@
-@import 'variables';
-@import 'spectre-0.5.1/_variables.scss';
+@import "variables";
+@import "spectre-0.5.1/_variables.scss";
 
-@import 'mixins';
-@import 'placeholders';
+@import "mixins";
+@import "placeholders";
 
-@import 'base';
-@import 'layout';
+@import "base";
+@import "layout";
 
-@import 'modules/btn';
-@import 'modules/chip';
-@import 'modules/comment';
-@import 'modules/divider';
-@import 'modules/empty';
-@import 'modules/form';
-@import 'modules/group';
-@import 'modules/heading';
-@import 'modules/input';
-@import 'modules/label';
-@import 'modules/link';
-@import 'modules/listing';
-@import 'modules/logged-in-user';
-@import 'modules/menu';
-@import 'modules/message';
-@import 'modules/nav';
-@import 'modules/pagination';
-@import 'modules/post';
-@import 'modules/settings';
-@import 'modules/sidebar';
-@import 'modules/site-footer';
-@import 'modules/site-header';
-@import 'modules/static-site';
-@import 'modules/tab';
-@import 'modules/text';
-@import 'modules/time';
-@import 'modules/toast';
-@import 'modules/topic';
+@import "modules/btn";
+@import "modules/chip";
+@import "modules/comment";
+@import "modules/divider";
+@import "modules/empty";
+@import "modules/form";
+@import "modules/group";
+@import "modules/heading";
+@import "modules/input";
+@import "modules/label";
+@import "modules/link";
+@import "modules/listing";
+@import "modules/logged-in-user";
+@import "modules/menu";
+@import "modules/message";
+@import "modules/nav";
+@import "modules/pagination";
+@import "modules/post";
+@import "modules/settings";
+@import "modules/sidebar";
+@import "modules/site-footer";
+@import "modules/site-header";
+@import "modules/static-site";
+@import "modules/tab";
+@import "modules/text";
+@import "modules/time";
+@import "modules/toast";
+@import "modules/topic";
 
 // Note: if you add a new theme, you may also want to add a new theme-color
 // meta tag inside the base.jinja2 template, so mobile browsers can match
-@import 'themes/theme_base';
-@import 'themes/default';
-@import 'themes/black';
-@import 'themes/dracula';
-@import 'themes/atom_one_dark';
-@import 'themes/solarized';
+@import "themes/theme_base";
+@import "themes/default";
+@import "themes/black";
+@import "themes/dracula";
+@import "themes/atom_one_dark";
+@import "themes/solarized";