docs: diff highlighting (#6604)

docs/docs/guides/remove-offline-files.md

@@ -15,13 +15,13 @@ This way works by downloading a JSON file that contains a list of all the files
 
 ## Script for Linux based systems:
 
-```
+```bash
 awk -F\" '/entityId/ {print $4}' orphans.json | while read line; do curl --location --request DELETE 'http://YOUR_IP_HERE:2283/api/asset' --header 'Content- Type: application/json' --header 'x-api-key: YOUR_API_KEY_HERE' --data '{ "force": true, "ids": ["'"$line"'"]}';done
 ```
 
 ## Script for the Windows system (run through PowerShell):
 
-```
+```powershell
 Get-Content orphans.json | Select-String -Pattern 'entityId' | ForEach-Object {
   $line = $_ -split '"' | Select-Object -Index 3
   $body = [pscustomobject]@{

docs/docusaurus.config.js

@@ -166,7 +166,7 @@ const config = {
       prism: {
         theme: prism.themes.github,
         darkTheme: prism.themes.dracula,
-        additionalLanguages: ['sql'],
+        additionalLanguages: ['sql', 'diff', 'bash', 'powershell', 'nginx'],
       },
       image: 'overview/img/feature-panel.png',
     }),