Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

server/tests/test-markdown-lists.md

@@ -0,0 +1,296 @@
+# Markdown List Testing
+Verify that all list types render as expected.
+
+### Single-Item Ordered List
+
+**Expected:**
+```
+7. Single Item
+```
+
+**Actual:**
+7. Single Item
+
+### Multi-Item Ordered List
+
+**Expected:**
+```
+1. One
+2. Two
+3. Three
+```
+
+**Actual:**
+
+1. One
+1. Two
+1. Three
+
+### Nested Ordered List
+
+**Expected:**
+```
+1. Alpha
+    1. Bravo
+2. Charlie
+3. Delta
+    1. Echo
+    2. Foxtrot
+```
+
+**Actual:**
+
+1. Alpha
+  1. Bravo
+1. Charlie
+1. Delta
+  1. Echo
+  1. Foxtrot
+
+### Single-Item Unordered List
+
+**Expected:**
+```
+• Single Item
+```
+
+**Actual:**
+* Single Item
+
+### Multi-Item Unordered List
+
+**Expected:**
+```
+• One
+• Two
+• Three
+```
+
+**Actual:**
+* One
+- Two
++ Three
+
+### Multi-Item Unordered List with Line Break (Break should not render)
+
+**Expected:**
+```
+• Item A
+• Item B
+• Item C
+• Item D
+```
+
+**Actual:**
+* Item A
++ Item B
+
+- Item C
+- Item D
+
+### Nested Unordered List
+
+**Expected:**
+```
+• Alpha
+    • Bravo
+• Charlie
+• Delta
+    • Echo
+    • Foxtrot
+```
+
+**Actual:**
++ Alpha
+    * Bravo
+- Charlie
+* Delta
+    + Echo
+    - Foxtrot
+
+### Mixed List Starting Ordered
+
+**Expected:**
+```
+1. One
+2. Two
+3. Three
+```
+
+**Actual:**
+
+1. One
++ Two
+- Three
+
+### Mixed List Starting Unordered
+
+**Expected:**
+```
+• Monday
+• Tuesday
+• Wednesday
+```
+
+**Actual:**
++ Monday
+1. Tuesday
+* Wednesday
+
+### Nested Mixed List
+
+**Expected:**
+```
+• Alpha
+    1. Bravo
+        • Charlie
+        • Delta
+• Echo
+• Foxtrot
+    • Golf
+        1. Hotel
+    • India
+        1. Juliet
+        2. Kilo
+    • Lima
+• Mike
+    1. November
+        4. Oscar
+            5. Papa
+```
+
+**Actual:**
+- Alpha
+    1. Bravo
+        * Charlie
+        + Delta
+- Echo
+* Foxtrot
+    + Golf
+        1. Hotel
+    - India
+        1. Juliet
+        2. Kilo
+    * Lima
+1. Mike
+    1. November
+        4. Oscar
+            5. Papa
+
+### Ordered Lists Separated by Carriage Returns
+
+**Expected:**
+```
+1. One
+  • Two
+2. Two
+3. Three
+```
+
+**Actual:**
+
+1. One
+    - Two
+
+2. Two
+3. Three
+
+### New Line After a List
+
+**Expected:**
+```
+1. One
+2. Two
+
+This text should be on a new line.
+```
+
+**Actual:**
+
+1. One
+2. Two
+This text should be on a new line.
+
+### Task Lists
+
+**Expected:**
+```
+[ ] One
+  [ ] Subpoint one
+  - Normal Bullet
+[ ] Two
+[x] Completed item
+```
+
+**Actual:**
+
+- [ ] One
+  - [ ] Subpoint one
+  - Normal Bullet
+- [ ] Two
+- [x] Completed item
+
+### Numbered Task Lists
+
+**Expected:**
+```
+1. [ ] One
+2. [ ] Two
+3. [x] Completed item
+```
+
+**Actual:**
+
+1. [ ] One
+2. [ ] Two
+3. [x] Completed item
+
+### Multiple Lists
+
+**Expected:**
+```
+List A:
+
+1. One
+
+List B:
+
+2. Two
+```
+
+List A:
+
+1. One
+
+List B:
+
+2. Two
+
+### Lists with blank lines before and after 
+
+**Expected:**
+
+```
+Line with blank line after 
+
+Line with blank line after and before 
+
+1. Bullet 
+2. Bullet 
+3. Bullet 
+
+Line with blank line after and before 
+
+Line with blank line before
+```
+Line with blank line after 
+
+Line with blank line after and before 
+
+1. Bullet 
+2. Bullet 
+3. Bullet 
+
+Line with blank line after and before 
+
+Line with blank line before