Bump next from 15.5.14 to 15.5.15

Bumps [next](https://github.com/vercel/next.js) from 15.5.14 to 15.5.15.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/compare/v15.5.14...v15.5.15)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.15
  dependency-type: direct:production
...

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

content/cli/remove-pdf-passoword.md

@@ -0,0 +1,17 @@
+---
+tags:
+  - cli
+  - qpdf
+  - pdf
+  - decrypt
+---
+
+# Remove password from PDFs
+
+```bash
+# Install qpdf
+nix-shell -p qpdf
+
+# Remove password
+qpdf --password=YOUR_PASSWORD --decrypt input.pdf output.pdf
+```

content/git/clean-local-branches.md

@@ -0,0 +1,28 @@
+---
+tags:
+  - git
+  - branch
+  - clean
+  - delete
+---
+# Clean up local branches
+
+## Delete all local branches that are already merged.
+
+This command is useful if you have a buch of local branches that you don't need anymore.
+
+```bash
+git branch --merged | grep -v \* | xargs git branch -D
+```
+
+[Original SO Link](https://stackoverflow.com/a/10610669)
+
+## Delete all other local branches
+
+This command will delete all local branches except the one you are currently on.
+
+```bash
+git branch | grep -v "$(git rev-parse --abbrev-ref HEAD)" | xargs git branch -D
+```
+
+[Source](https://dev.to/vineethtrv/how-to-delete-all-local-git-branches-except-the-current-one-5dcb)

content/git/remove-merged-branch.md

@@ -1,20 +0,0 @@
----
-tags:
-  - git
-  - branch
-  - clean
-  - delete
----
-
-# Delete all local branches that are already merged.
-
-This command is useful if you have a buch of local branches that you don't need anymore.
-
-```bash
-git branch --merged | grep -v \* | xargs git branch -D
-```
-
-[Original SO Link](https://stackoverflow.com/a/10610669)
-
-
- 

package.json

@@ -6,11 +6,11 @@
     "postbuild": "pagefind --site .next/server/app --output-path public/_pagefind"
   },
   "dependencies": {
-    "next": "^15.5.2",
+    "next": "^15.5.15",
-    "nextra": "^4.4.0",
+    "nextra": "^4.6.1",
-    "nextra-theme-docs": "^4.4.0",
+    "nextra-theme-docs": "^4.6.1",
-    "react": "^19.1.1",
+    "react": "^19.2.4",
-    "react-dom": "^19.1.1"
+    "react-dom": "^19.2.4"
   },
   "packageManager": "pnpm@10.15.1",
   "devDependencies": {