fix:check is_submittable attr exists in meta before accessing

The object 'meta' does not always have the attribute 'is_submittable.'
This extra syntax checks for existence first.

chore: Use get_absolute_url to doc.get_url

fix: Remove frappe from boilerplate requirements.txt

Remove frappe from new app boilerplates to avoid possible supply chain attacks. Don't make pip fetch frappe from PyPI

Avoid re-implementation to reduce interfaces for possible bugs/fixes

fix: inbound mail handling for pop3 protocol

Apply 0d8aeba3ee for parrallel test runner

Files that don't end with .py or .pyo ot .pyc are automatically
skipped by coveragepy. Updated omit list accordingly to remove non
python importable files.

ref: https://coverage.readthedocs.io/en/coverage-5.5/source.html#execution

* Generated v10 backup archive
    * used old v7 erpnext backup hosted via build.erpnext.com
    * upgraded to v10 frappe + erpnext
    * uninstalled and deleted erpnext related data
* Hosted backup on https://frappeframework.com/files/v10-frappe.sql.gz

* This change will not allow direct upgrade from frappe versions older than v10 to v13 and newer
* Removed patch records and execute commands that could've been
  guessed aren't needed by sleuthing and guessing. since 2017 had 3 major releases: v8, v9 and v10 unsure which execute lines are required so kept all that were last updated in that year

ci(semgrep): false +ve translation on templates

chore: Dead dependencies and code cleanup

fix: removed duplicate fields from Customize Form

refactor: build Email queue from send mail request

replaced queue.send function with Queue builder.
Queue builder builds a queue from sendmail request and sends the mail
if requested to send mail immediately.

* fix: only allow keys generated by fernet in encrypt()/decrypt()

* fix: sider and semgrep fixes

fix: Add min-width for dropdown list

fix(server scripts): Restrict access to python's internal attributes

fix: Grid row deletion fix

fix: Grid navigation with keyboard on multiple pages

* Update email_group.py

Fix: Select appropriate email template response, Welcome email template can be either html or rich text

* refactor: Simpify code

Co-authored-by: Suraj Shetty <13928957+surajshetty3416@users.noreply.github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

fix(jinja): Remove frappe.utils.jinja.get_jenv() from jinja globals