build(deps): bump postcss from 8.5.15 to 8.5.26 in /frontend

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.15 to 8.5.26.
- [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/8.5.15...8.5.26)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.26
  dependency-type: direct:production
...

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

frontend/package-lock.json

@@ -28,7 +28,7 @@
         "htmx.org": "^2.0.10",
         "hyperscript.org": "^0.9.91",
         "mathjs": "^15.2.0",
-        "postcss": "^8.5.15",
+        "postcss": "^8.5.26",
         "pulltorefreshjs": "^0.1.22",
         "sass": "^1.100.0",
         "sweetalert2": "^11.26.25",
@@ -1758,9 +1758,9 @@
       }
     },
     "node_modules/nanoid": {
-      "version": "3.3.12",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.12.tgz",
-      "integrity": "sha512-ZB9RH/39qpq5Vu6Y+NmUaFhQR6pp+M2Xt76XBnEwDaGcVAqhlvxrl3B2bKS5D3NH3QR76v3aSrKaF/Kiy7lEtQ==",
+      "version": "3.3.17",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.17.tgz",
+      "integrity": "sha512-xQLf0A3HOMlgHq0n247/LRuAOYmB7dXJ/DvAxGvsSBij45XtBSmQycu+F8ODbHwns/XyFZagyL1+J0Offw1E0g==",
       "funding": [
         {
           "type": "github",
@@ -1810,9 +1810,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.15",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.15.tgz",
-      "integrity": "sha512-FfR8sjd4em2T6fb3I2MwAJU7HWVMr9zba+enmQeeWFfCbm+UOC/0X4DS8XtpUTMwWMGbjKYP7xjfNekzyGmB3A==",
+      "version": "8.5.26",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.26.tgz",
+      "integrity": "sha512-u82N74LFzG8ca+dD8puPnplTXoGH4fTPpVGuIbt36G3qvNlkvfD0lEAZSxaly3KX8TS/L1A1gsCEmvKmBcVbkQ==",
       "funding": [
         {
           "type": "opencollective",
@@ -1829,7 +1829,7 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "nanoid": "^3.3.12",
+        "nanoid": "^3.3.17",
         "picocolors": "^1.1.1",
         "source-map-js": "^1.2.1"
       },

frontend/package.json

@@ -35,7 +35,7 @@
     "htmx.org": "^2.0.10",
     "hyperscript.org": "^0.9.91",
     "mathjs": "^15.2.0",
-    "postcss": "^8.5.15",
+    "postcss": "^8.5.26",
     "pulltorefreshjs": "^0.1.22",
     "sass": "^1.100.0",
     "sweetalert2": "^11.26.25",