fix: update edit URL and replace social card image (#67)

Closes
https://linear.app/defi-wonderland/issue/CHA-364/reduce-cover-image-size-fix-edit-link-url

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Chores**
* Updated "edit this page" links in documentation to point to specific
subdirectories for improved accuracy.
* Changed the social media preview image format for the Optimism site
from PNG to JPG.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: th0rOdinson

sites/optimism/docusaurus.config.ts

@@ -24,7 +24,7 @@ const localConfig: Config = {
       {
         docs: {
           sidebarPath: "./sidebars.ts",
-          editUrl: "https://github.com/defi-wonderland/handbook/tree/main/",
+          editUrl: "https://github.com/defi-wonderland/handbook/tree/main/sites/optimism",
           showLastUpdateTime: true,
           showLastUpdateAuthor: true,
         },
@@ -40,7 +40,7 @@ const localConfig: Config = {
   ],
 
   themeConfig: {
-    image: "img/op-social-card.png",
+    image: "img/op-social-card.jpg",
     navbar: {
       title: "",
       logo: {

sites/optimism/static/img/op-social-card.jpg

@@ -32,7 +32,7 @@ const localConfig: Config = {
           sidebarPath: "./sidebars.ts",
           // Please change this to your repo.
           // Remove this to remove the 'edit this page' links.
-          editUrl: "https://github.com/defi-wonderland/handbook/tree/main/",
+          editUrl: "https://github.com/defi-wonderland/handbook/tree/main/sites/template",
           remarkPlugins: [remarkMath],
           rehypePlugins: [rehypeKatex],
         },

sites/optimism/static/img/op-social-card.png

@@ -32,7 +32,7 @@ const localConfig: Config = {
           sidebarPath: "./sidebars.ts",
           // Please change this to your repo.
           // Remove this to remove the 'edit this page' links.
-          editUrl: "https://github.com/defi-wonderland/handbook/tree/main/",
+          editUrl: "https://github.com/defi-wonderland/handbook/tree/main/sites/wonderland",
           remarkPlugins: [remarkMath],
           rehypePlugins: [rehypeKatex],
         },