Chore(deps): bump postcss from 8.4.26 to 8.4.31

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.26 to 8.4.31.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.4.26...8.4.31)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "mapcomplete",
-  "version": "0.33.5",
+  "version": "0.33.7",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mapcomplete",
-      "version": "0.33.5",
+      "version": "0.33.7",
       "license": "GPL-3.0-or-later",
       "dependencies": {
         "@rgossiaux/svelte-headlessui": "^1.0.2",
@@ -9612,9 +9612,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.26",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.26.tgz",
-      "integrity": "sha512-jrXHFF8iTloAenySjM/ob3gSj7pCu0Ji49hnjqzsgSRa50hkWCKD0HQ+gMNJkW38jBI68MpAAg7ZWwHwX8NMMw==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "funding": [
         {
           "type": "opencollective",
@@ -20529,9 +20529,9 @@
       }
     },
     "postcss": {
-      "version": "8.4.26",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.26.tgz",
-      "integrity": "sha512-jrXHFF8iTloAenySjM/ob3gSj7pCu0Ji49hnjqzsgSRa50hkWCKD0HQ+gMNJkW38jBI68MpAAg7ZWwHwX8NMMw==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "requires": {
         "nanoid": "^3.3.6",
         "picocolors": "^1.0.0",