fix!: All schema properties snake cased

Close #11

src/components/examples/api/modules.yaml

@@ -17,7 +17,7 @@
     de:
       - an1
     en: []
-  enablingModules:
+  enabling_modules:
     de:
       - aet2
       - msee
@@ -32,6 +32,6 @@
   cat: null
   sub_cat: null
   dependencies: {}
-  enablingModules:
+  enabling_modules:
     de: []
     en: []

src/components/schemas/api/module.yaml

@@ -57,7 +57,7 @@ properties:
     description: |
       What dependencies are required to be able to participate in this module.
     $ref: ./module-dependency.yaml
-  enablingModules:
+  enabling_modules:
     description: |
       List of modules, that can be attended, after the completion of this module.
     $ref: ./module-dependency.yaml
@@ -72,4 +72,4 @@ required:
   - cat
   - sub_cat
   - dependencies
-  - enablingModules
+  - enabling_modules