chore: Add DEV and UX issue templates (#2104)

- Added [Issue
templates](https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/configuring-issue-templates-for-your-repository#creating-issue-forms)
for Dev and UX tickets to make ticket creation process easier
- Renamed templates to enforce wanted order of issue templates

.github/ISSUE_TEMPLATE/99-dev-story.md

@@ -0,0 +1,76 @@
+---
+name: Create a Dev Story 📗
+about: Story Template for development tasks
+title: 'Implement|Define|Fix: ...''
+labels: 'dev'
+
+---
+
+<!-- Add, adapt and remove the following sections as necessary -->
+
+### Open Questions/To-dos
+
+<!-- Remove before ready -->
+
+<!-- [ ] Add question if any, use `@` to tag people -->
+
+### Depends on
+
+<!-- Add links to tickets -->
+
+### Why?
+
+<!-- Add description and motivation -->
+
+### Design
+
+<!-- Add Figma link and comments here -->
+
+### Acceptance criteria
+
+<!--  Add ticket specific AC, e.g., the expected behavior of a component -->
+
+### Implementation details
+
+<!--
+add details if necessary, e.g.,
+- API proposal
+- relevant web APIs
+- learnings from other implementations
+- code snippets
+-->
+
+#### Reference implementations
+
+<!--  add links to other frameworks and WaWi, examples:
+  - https://nuxt.com/docs/getting-started/installation
+  - https://element-plus.org/en-US/component/overview.html
+  - https://www.shadcn-vue.com/docs/components/accordion.html
+  - https://design-system.w3.org/components for structural inspiration
+ -->
+
+#### Applicable ARIA Pattern
+
+<!-- add link if applicable, see https://www.w3.org/WAI/ARIA/apg/patterns -->
+
+### Definition of Done
+
+- The following component requirements are implemented:
+  - [ ] skeleton
+  - [ ] density
+  - [ ] example usage added to `apps/demo-app/src/views/HomeView.vue`
+- covered by tests
+  - [ ] functional tests (Playwright or unit test)
+  - [ ] visual tests (Playwright screenshots)
+- [ ] follow-up tickets were created if necessary
+- [ ] updated version + documentation is deployed
+- [ ] Storybook can show the feature
+- [ ] Storybook code snippet of new/changed examples are checked that they are generated correctly
+- [ ] Namings are aligned with Figma
+
+**Approval**
+
+- Storybook <!-- add link to deployed storybook -->
+- Deployed Docs <!-- add link to deployed docs -->
+- [ ] approved by designer @jannick-ux
+- [ ] approved by dev <!-- add dev tag -->

.github/ISSUE_TEMPLATE/99-ux-story.md

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+---
+name: Create a UX Story 🎨
+about: Story Template for design tasks
+title: 'Concept|Adjust|Research: ...''
+labels: 'ux'
+
+---
+
+<!-- Add, adapt and remove the following sections as necessary_ -->
+
+### Create "Component Name"
+
+- [ ] _if needed_ variation
+- [ ] density
+- [ ] states
+- [ ] dark mode
+- [ ] keyboard support
+
+### Functions
+
+- [ ] function 1
+- [ ] function 2
+- [ ] function 3
+
+### Figma
+
+- [ ] dev handover
+- [ ] ux component
+
+### documentation
+
+- [ ] keyboard support
+- [ ] property description
+- [ ] textual documentation
+- [ ] component grouping
+
+### _if needed_ links for comparison
+
+- link 1
+- link 2
+
+### Finalizing
+
+- [ ] approved