fix: create Project from Template set Project Type and Start Date

[FHenry]

Please provide enough information so that others can review your pull request:

Create Project Template of Project Type = Other
Create a Project from this template, Project Type is empty and start date is empty

As I was working on another PR (#41308) on Project DocType, github action show me this for semgreg failed result

frappe-semgrep-rules.rules.frappe-modifying-but-not-comitting-other-method
          self.copy_from_template is called from self.after_insert, check if changes to
          self.expected_start_date are commited to database.            

frappe-semgrep-rules.rules.frappe-modifying-but-not-comitting-other-method
          self.copy_from_template is called from self.after_insert, check if changes to self.project_type are
          commited to database.      

Explain the details for making this change. What existing problem does the pull request solve?

Split method copy_from_template into two methods
copy_from_template_data : for project_type and default expected_start_date to today, call on before_insert and validate
copy_from_template_task : for tasks call on validate and after_insert

no-docs

[FHenry]

Note to reviewer : I added tests after first commit, so label need-test is not accurate

[FHenry]

@deepeshgarg007 No reviewer auto-assign on this PR ? Could you have a look please ?

[FHenry]

@deepeshgarg007 No reviewer auto-assign on this PR ? Could you have a look please ?

[FHenry]

Hello Frappe Team, there are no "auto-reviewer" for this PR affected by default.
Could you guide us to the best process, as this PR already respect the Contributing Guideline, to avoid this kind of "lost in loophole" for code contribution ?
On the other-hand, I understand that at Frappe, you have lot's of other important/critical PR to review.

[FHenry]

@barredterra, @s-aga-r
Sorry to bother you both with this, but on theses two PRs #41308 and this one (they are linked), I didn't get any feedback from Frappe Team since a long time.
May be this is no interest on Project feature, could you just just tell me ?