fix: Node with text renders by default as Markdown

[knsv]

… text

📑 Summary

Adding differentiation between regular strings and markdown strings.

Resolves #5824 and #6048

📏 Design Decisions

Adding back createLabel for the cases where you do not want markdown text

📋 Tasks

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• 📖 have read the contribution guidelines
• 💻 have added necessary unit/e2e tests.
• 📓 have added documentation. Make sure MERMAID_RELEASE_VERSION is used for all new features.
• 🦋 If your PR makes a change that should be noted in one or more packages' changelogs, generate a changeset by running pnpm changeset and following the prompts. Changesets that add features should be minor and those that fix bugs should be patch. Please prefix changeset messages with feat:, fix:, or chore:.

[changeset-bot]

🦋 Changeset detected

Latest commit: c7880d7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
mermaid	Patch

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commit: c7880d7

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 33 lines in your changes missing coverage. Please review.

Project coverage is 4.48%. Comparing base (65f9b29) to head (c7880d7).
Report is 6 commits behind head on develop.

Files with missing lines	Patch %	Lines
...c/rendering-util/rendering-elements/shapes/util.ts	0.00%	21 Missing ⚠️
...aid/src/rendering-util/rendering-elements/edges.js	0.00%	10 Missing ⚠️
packages/mermaid/src/diagrams/flowchart/flowDb.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #6087      +/-   ##
==========================================
- Coverage     4.49%   4.48%   -0.02%     
==========================================
  Files          382     383       +1     
  Lines        53914   54067     +153     
  Branches       621     596      -25     
==========================================
  Hits          2425    2425              
- Misses       51489   51642     +153     

Flag	Coverage Δ
unit	4.48% <0.00%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/mermaid/src/diagrams/flowchart/flowDb.ts	0.00% <0.00%> (ø)
...aid/src/rendering-util/rendering-elements/edges.js	0.00% <0.00%> (ø)
...c/rendering-util/rendering-elements/shapes/util.ts	0.00% <0.00%> (ø)

... and 4 files with indirect coverage changes

[sidharthv96]

Suggested change

	it('68: should be able to string and markdown labels (#5824)', () => {
	it('68: should be able to render string and markdown labels (#5824)', () => {