feat: transpose metadata (#18)

* feat: transpose between frontmatter and inline metadata

* ci: improve codecode patch thresholds

* test: remove ansi escape sequences from `capsys.errout`

* test: improve fixture for shared keys

* build(deps): update dependencies

* refactor: use deepcopy

* docs: add transpose metadata

tests/fixtures/sample_vault/01 frontmatter/frontmatter 4.md

@@ -3,21 +3,11 @@ area: frontmatter
 date_created: 2022-12-22
 date_modified: 2022-12-22
 tags:
-  - food/fruit/apple
-  - food/fruit/pear
-  - dinner
-  - lunch
-  - breakfast
-thoughts:
-  rating: 8
-  reviewable: false
-levels:
-  level1:
-    - level1a
-    - level1b
-  level2:
-    - level2a
-    - level2b
+    - food/fruit/apple
+    - food/fruit/pear
+    - dinner
+    - lunch
+    - breakfast
 author: John Doe
 status: new
 type: ["book", "article", "note"]