refactor: Remove branch specification from sal dependency

- Removed the branch specification from the `sal` dependency in
  `doctree/Cargo.toml` and `webbuilder/Cargo.toml`. This simplifies
  the dependency management and relies on the default branch of the
  repository.
- Updated `.gitignore` to ignore `sccache.log` to prevent it from
  being committed to the repository.
- Updated example commands in `example_commands.sh` to use a different
  collection name (`grid1` instead of `grid_documentation`) for testing
  purposes.  This avoids potential conflicts with pre-existing data.
- Improved code structure and organization in `doctree/src/lib.rs`.

example_commands.sh

@@ -13,13 +13,13 @@ echo -e "\n=== Listing Collections ==="
 cargo run -- list
 
 echo -e "\n=== Getting Document (Markdown) ==="
-cargo run -- get -c grid_documentation -p introduction.md
+cargo run -- get -c grid1 -p introduction.md
 
 echo -e "\n=== Getting Document (HTML) ==="
-cargo run -- get -c grid_documentation -p introduction.md -f html
+cargo run -- get -c grid1 -p introduction.md -f html
 
 echo -e "\n=== Deleting Collection ==="
-cargo run -- delete grid_documentation
+cargo run -- delete grid1
 
 echo -e "\n=== Listing Remaining Collections ==="
 cargo run -- list