Use built-in git instead of Git Automator extension

This commit updates the template settings
To use the built-in VS Code git integration instead of Git Automator.

- Automatically stage all changes
  "git.enableSmartCommit": true,

- Automatically push & pull changes to the remote after committing
  "git.postCommitCommand": "sync"

This feature could be improved further
By setting a default key-binding to Git: Commit All,
And/or by automatically committing on save or focus change
For the most SaaS-like experience.

.vscode/extensions.json

@@ -11,16 +11,12 @@
     // GitLens for seeing version history inline
     "eamodio.gitlens",
 
-    // Git Automator for quick commit and push
-    // (Could be improved)
-    "ivangabriele.vscode-git-add-and-commit",
-
     // Tons of markdown goodies (lists, tables of content, so much more)
     "yzhang.markdown-all-in-one",
 
     // [[wiki-links]], backlinking etc
     "kortina.vscode-markdown-notes",
-    
+
     // Adds `show graph` command that displays graph of linked notes
     "tchayen.markdown-links",