Codemirror 5 to 6 upgrade (#1386)

## Launch Checklist

- Resolves #891

This PR upgrades code mirror from version 5 to version 6.
It should not change any functionality dramatically.
The filter and other expressions have line numbers now as I was not able
to remove those without introducing a lot of code, which I preferred not
to.

Before:

<img width="571" height="933" alt="image"
src="https://github.com/user-attachments/assets/02f047ee-0857-4eb1-9431-2620099ea025"
/>


After:
<img width="571" height="933" alt="image"
src="https://github.com/user-attachments/assets/7cf60155-7cd9-4c06-915e-dec2ae8247fc"
/>



 - [x] Briefly describe the changes in this PR.
 - [x] Link to related issues.
- [x] Include before/after visuals or gifs if this PR includes visual
changes.
 - [x] Write tests for all new functionality.
 - [x] Add an entry to `CHANGELOG.md` under the `## main` section.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

CHANGELOG.md

@@ -8,6 +8,8 @@
 - Add ability to control the projection of the map - either globe or mercator
 - Add markdown support for doc related to the style-spec fields
 - Added global state modal to allow editing the global state
+- Added color highlight for problematic properties
+- Upgraded codemirror from version 5 to version 6
 - _...Add new stuff here..._
 
 ### 🐞 Bug fixes
@@ -17,6 +19,7 @@
 - Fixed an issue with the generation of tranlations
 - Fix missing spec info when clicking next to a property
 - Fix Firefox open file that stopped working due to react upgrade
+- Fix issue with missing bottom error panel
 - _...Add new stuff here..._
 
 ## 3.0.0