fixed some features and added propper default direction

packages/mermaid/src/diagrams/git/gitGraphAst.ts

@@ -35,7 +35,7 @@ const state = new ImperativeState<GitGraphState>(() => ({
   branchConfig: new Map([[mainBranchName, { name: mainBranchName, order: mainBranchOrder }]]),
   branches: new Map([[mainBranchName, null]]),
   currBranch: mainBranchName,
-  direction: 'LR',
+  direction: 'TB',
   seq: 0,
   options: {},
 }));

packages/mermaid/src/diagrams/git/gitGraphParser.ts

@@ -46,6 +46,7 @@ const parseCommit = (commit: CommitAst) => {
   const id = commit.id;
   const message = commit.message ?? '';
   const tags = commit.tags ?? undefined;
+  log.info(`Commit type`, commit.type);
   const type = commit.type !== undefined ? commitType[commit.type] : 0;
   log.info(`Commit: ${id} ${message} ${type}`);
   db.commit(message, id, type, tags);

packages/parser/src/language/gitGraph/gitGraph.langium

@@ -57,7 +57,7 @@ Commit:
         'id:' id=STRING 
         |'msg:'? message=STRING
         |'tag:' tags+=STRING
-        |'type:' name=('NORMAL' | 'REVERSE' | 'HIGHLIGHT')
+        |'type:' type=('NORMAL' | 'REVERSE' | 'HIGHLIGHT')
     )* EOL;
 Branch:
     'branch' name=(ID|STRING)