[core] Remove issue emoji

.github/ISSUE_TEMPLATE/2.feature.yml

@@ -24,15 +24,15 @@ body:
           required: true
   - type: textarea
     attributes:
-      label: Summary 💡
+      label: Summary
       description: Describe how it should work.
   - type: textarea
     attributes:
-      label: Examples 🌈
+      label: Examples
       description: Provide a link to the Material Design specification, other implementations, or screenshots of the expected behavior.
   - type: textarea
     attributes:
-      label: Motivation 🔦
+      label: Motivation
       description: What are you trying to accomplish? How has the lack of this feature affected you? Providing context helps us come up with a solution that is more useful in the real world.
   - type: input
     id: contact

.github/ISSUE_TEMPLATE/3.pro-support.yml

@@ -33,15 +33,15 @@ body:
           required: true
   - type: textarea
     attributes:
-      label: The problem in depth 🔍
+      label: The problem in depth
       description: |
         **If applicable, please provide a live example to explain your problem.**
         If you don't have one, you can use one of these options:
           - [DataGrid codesandbox template](https://codesandbox.io/s/github/mui/mui-x/tree/master/templates/x-data-grid?file=/src/demo.tsx)
           - Fork any of the examples in our [documentation](https://mui.com/x/introduction/) by [clicking on the codesandbox or stackblitz icon](https://mui.com/static/docs/forking-an-example.png)
   - type: textarea
     attributes:
-      label: Your environment 🌎
+      label: Your environment
       description: Run `npx @mui/envinfo` and post the results. If you encounter issues with TypeScript please include the used tsconfig.
       value: |
         <details>

.github/ISSUE_TEMPLATE/4.premium-support.yml

@@ -33,15 +33,15 @@ body:
           required: true
   - type: textarea
     attributes:
-      label: The problem in depth 🔍
+      label: The problem in depth
       description: |
         **If applicable, please provide a live example to explain your problem.**
         If you don't have one, you can use one of these options:
           - [DataGrid codesandbox template](https://codesandbox.io/s/github/mui/mui-x/tree/master/templates/x-data-grid?file=/src/demo.tsx)
           - Fork any of the examples in our [documentation](https://mui.com/x/introduction/) by [clicking on the codesandbox or stackblitz icon](https://mui.com/static/docs/forking-an-example.png)
   - type: textarea
     attributes:
-      label: Your environment 🌎
+      label: Your environment
       description: Run `npx @mui/envinfo` and post the results. If you encounter issues with TypeScript please include the used tsconfig.
       value: |
         <details>

.github/ISSUE_TEMPLATE/5.priority-support.yml

@@ -23,15 +23,15 @@ body:
           required: true
   - type: textarea
     attributes:
-      label: The problem in depth 🔍
+      label: The problem in depth
       description: |
         **If you're reporting a bug, please provide a live example for your report.**
         If you don't have one, you can use one of these options:
           - [DataGrid codesandbox template](https://codesandbox.io/s/github/mui/mui-x/tree/master/templates/x-data-grid?file=/src/demo.tsx)
           - Fork any of the examples in our [documentation](https://mui.com/x/introduction/) by [clicking on the codesandbox or stackblitz icon](https://mui.com/static/docs/forking-an-example.png)
   - type: textarea
     attributes:
-      label: Your environment 🌎
+      label: Your environment
       description: Run `npx @mui/envinfo` and post the results. If you encounter issues with TypeScript please include the used tsconfig.
       value: |
         <details>

.github/ISSUE_TEMPLATE/6.docs-feedback.yml

@@ -41,8 +41,8 @@ body:
       description: |
         Let us know what went wrong when you were using this documentation and what we could do to improve it.
       value: |
-        I was looking for ... and it appears that ...
+        I was looking for … and it appears that …
   - type: textarea
     attributes:
-      label: Context 🔦
+      label: Context
       description: What are you trying to accomplish? What brought you to this page? Your context can help us to come up with solutions that benefit the community as a whole.

.github/ISSUE_TEMPLATE/7.rfc.yml

@@ -11,20 +11,20 @@ body:
         Thanks for contributing by creating an RFC! ❤️
   - type: textarea
     attributes:
-      label: What's the problem? 🤔
+      label: What's the problem?
       description: Write a short paragraph or bulleted list to briefly explain what you're trying to do, what outcomes you're aiming for, and any other relevant details to help us understand the motivation behind this RFC.
   - type: textarea
     attributes:
-      label: What are the requirements? ❓
+      label: What are the requirements?
       description: Provide a list of requirements that should be met by the accepted proposal.
   - type: textarea
     attributes:
-      label: What are our options? 💡
+      label: What are our options?
       description: |
         Have you considered alternative options for achieving your desired outcome? It's not necessary to go into too much detail here, but it can help strengthen your main proposal.
   - type: textarea
     attributes:
-      label: Proposed solution 🟢
+      label: Proposed solution
       description: |
         This is the core of the RFC. Please clearly explain the reasoning behind your proposed solution, including why it would be preferred over possible alternatives.
 
@@ -34,5 +34,5 @@ body:
         - linking to relevant project briefs or wireframes
   - type: textarea
     attributes:
-      label: Resources and benchmarks 🔗
+      label: Resources and benchmarks
       description: Attach any issues, PRs, links, documents, etc… that might be relevant to the RFC