fix: Rename Generator to CodeGenerator (#6585)

Stops collisions with ES6's Generator.
The old Blockly.Generator still exists as a name, but is now deprecated.

.github/CONTRIBUTING.md

@@ -29,9 +29,9 @@ All submissions, including submissions by project members, require review. We
 use Github pull requests for this purpose.
 
 ### Browser compatibility
-We care strongly about making Blockly work on all browsers.  As of 2022 we 
+We care strongly about making Blockly work on all browsers.  As of 2022 we
 support Edge, Chrome, Safari, and Firefox.  We will not accept changes that only
-work on a subset of those browsers.  You can check [caniuse.com](https://caniuse.com/) 
+work on a subset of those browsers.  You can check [caniuse.com](https://caniuse.com/)
 for compatibility information.
 
 ### The small print

.github/dependabot.yml

@@ -22,7 +22,7 @@ updates:
       - "PR: chore"
       - "PR: dependencies"
   - package-ecosystem: "github-actions" # See documentation for possible values
-    directory: "/" 
+    directory: "/"
     target-branch: "develop"
     schedule:
       interval: "weekly"

.github/workflows/tag_module_cleanup.yml

@@ -5,14 +5,14 @@ name: Tag module cleanup
 
 # Trigger on pull requests against goog_module branch only
 # Uses pull_request_target to get write permissions so that it can write labels.
-on: 
+on:
   pull_request_target:
     branches:
       - goog_module
 
 jobs:
   tag-module-cleanup:
-  
+
     # Add the type: cleanup label
     runs-on: ubuntu-latest
     steps:

.github/workflows/update_metadata.yml

@@ -13,7 +13,7 @@ jobs:
     permissions:
       contents: write  # for peter-evans/create-pull-request to create branch
       pull-requests: write  # for peter-evans/create-pull-request to create a PR
-    runs-on: ubuntu-latest        
+    runs-on: ubuntu-latest
 
     steps:
     - name: Check Out Blockly