new script: silverbullet (#659)

* new script: silverbullet

* update copyright and author information

* address code review comments and suggestions

* fix: overwrite existing binary on unzip

* address remaining review comments

* add documenation link

* update header and footer to new standard

* little fixes

* little fixes

---------

Co-authored-by: CanbiZ <47820557+MickLesk@users.noreply.github.com>

json/silverbullet.json

@@ -0,0 +1,34 @@
+{
+    "name": "Silverbullet",
+    "slug": "silverbullet",
+    "categories": [
+        14
+    ],
+    "date_created": "2024-12-03",
+    "type": "ct",
+    "updateable": true,
+    "privileged": false,
+    "interface_port": 3000,
+    "documentation": "https://silverbullet.md/Manual",
+    "website": "https://silverbullet.md",
+    "logo": "https://silverbullet.md/.client/logo.png",
+    "description": "SilverBullet is a note-taking application optimized for people with a hacker mindset.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/silverbullet.sh",
+            "resources": {
+                "cpu": 1,
+                "ram": 512,
+                "hdd": 2,
+                "os": "debian",
+                "version": "12"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+    "notes": []
+}