Feat(DND): Enable Simple DND

[shivamG640]

Fixes #80 partially

Following are the changes coming with this PR:

• Enabled DND of nodes over other nodes.
• Enabled containers drag only when collapsed.
• Added Visual Feedback when DND on nodes.
• Added feature flag for the DND on the settings page.
• Enabled re-arrangement of when/doCatch containers in case of choice/doTry.

Above changes can be tested live here.

Note:

• We have restricted group drop on placeholder as there are few breaking cases which needs to be handled.
• There is known console error on every successful drag and drop which needs some attention.

[codecov]

Codecov Report

Attention: Patch coverage is 37.01299% with 97 lines in your changes missing coverage. Please review.

Project coverage is 78.45%. Comparing base (001a9b4) to head (98e4a92).
Report is 16 commits behind head on main.

Files with missing lines	Patch %	Lines
...omponents/Visualization/Custom/Node/CustomNode.tsx	61.42%	26 Missing and 1 partial ⚠️
...isualization/flows/abstract-camel-visual-entity.ts	0.00%	21 Missing and 1 partial ⚠️
...ents/Visualization/Custom/Node/PlaceholderNode.tsx	20.00%	18 Missing and 2 partials ⚠️
...c/models/visualization/flows/pipe-visual-entity.ts	0.00%	10 Missing and 1 partial ⚠️
.../ui/src/models/visualization/visualization-node.ts	0.00%	6 Missing ⚠️
...ization/flows/camel-error-handler-visual-entity.ts	0.00%	4 Missing ⚠️
...on/flows/camel-rest-configuration-visual-entity.ts	0.00%	4 Missing ⚠️
...Visualization/Custom/Group/CustomGroupExpanded.tsx	77.77%	2 Missing ⚠️
...ponents/Visualization/Canvas/controller.service.ts	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1620      +/-   ##
============================================
- Coverage     78.62%   78.45%   -0.17%     
  Complexity      365      365              
============================================
  Files           439      465      +26     
  Lines         14234    14667     +433     
  Branches       2769     2792      +23     
============================================
+ Hits          11191    11507     +316     
+ Misses         2954     2888      -66     
- Partials         89      272     +183     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[lordrip]

For another PR: we don't need to export this component anymore :)

Suggested change

	export const CustomGroupExpandedInner: FunctionComponent<CustomGroupProps> = observer(
	const CustomGroupExpandedInner: FunctionComponent<CustomGroupProps> = observer(

[lordrip]

For another PR: we can rename this component to CustomNode

Suggested change

	export const CustomNodeWithSelection = withDndDrop(customNodeDropTargetSpec)(
	export const CustomNode = withDndDrop(customNodeDropTargetSpec)(

[lordrip]

Thanks @shivamG640 👍 I'm merging this one so we can move to the next phase 💪