add rename ability to lead and opportunity

[Aryan20]

Description

Currently a Lead or Opportunity can be renamed from the the ERPNext backend but not from the Next CRM frontend.
This functionality can be added to the name labels.

Relevant Technical Choices

1. Created a new modal which can rename and change title of a doc
2. Used the name in doc as the trigger for the dialog box
3. Added title fields with high priority as fallback breadcrumb and name choice.

Testing Instructions

1. Open a opportunity or lead
2. Click on the title part of it
3. Type a new name or title
4. Check that it successfully renames on action button click

Screenshot/Screencast

Screen.Recording.2025-03-20.at.4.29.29.AM.mov

Checklist

• I have carefully reviewed the code before submitting it for review.
• This code is adequately covered by unit tests to validate its functionality.
• I have conducted thorough testing to ensure it functions as intended.
• A member of the QA team has reviewed and tested this PR (To be checked by QA or code reviewer)

Fixes #84

[niraj2477]

@Aryan20 Some kind of indicator should be there, since it is not by default understood that user can click on name to rename the doc.

[Aryan20]

Updates - discussed in daily sync. The UI although lacking visual indicators is close to the one in ERPNext so would be intuitive enough.

@niraj2477 Please review.