Add about page

shared/models/config/about.model.ts

@@ -0,0 +1,7 @@
+export interface About {
+  instance: {
+    name: string
+    description: string
+    terms: string
+  }
+}

shared/models/config/server-config.model.ts

@@ -1,11 +1,18 @@
 export interface ServerConfig {
-  serverVersion: string,
+  serverVersion: string
+
+  instance: {
+    name: string
+  }
+
   signup: {
     allowed: boolean
   }
+
   transcoding: {
     enabledResolutions: number[]
   }
+
   avatar: {
     file: {
       size: {
@@ -14,6 +21,7 @@ export interface ServerConfig {
       extensions: string[]
     }
   }
+
   video: {
     file: {
       extensions: string[]