fix: Minor Updates in Payment Request and Payment Entry (backport #44302)

[mergify]

Issue: Support Ticket - 26199

Changes

• Refactor: Used object to get indicator color instead of if - else
• Refactor: Move PR link filters to the client side so users can easily know on what basis PRs are filtered.
• Fix: Dashboard to view connections
• Fix: When fetching outstanding transactions in Payment Entry, do not fetch those Payment Requests which have an Outstanding Amount of zero for PR allocation in references.

Dashboard In Light Theme

Dashboard In Dark Theme

View Filters Changes

Before:

After:

View Outstanding Amount filter effect

Filter:
https://github.com/Abdeali099/erpnext/blob/214dfab2697ec13e70262cb4af92ca812a2dcb80/erpnext/accounts/doctype/payment_entry/payment_entry.py#L2974

Without Filter:

With Filter:

Note

Backport to V-15 and V-14

---

This is an automatic backport of pull request #44302 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of e1c4d6e has failed:

On branch mergify/bp/version-15-hotfix/pr-44302
Your branch is up to date with 'origin/version-15-hotfix'.

You are currently cherry-picking commit e1c4d6e1e6.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   erpnext/accounts/doctype/payment_request/payment_request_list.js

no changes added to commit (use "git add" and/or "git commit -a")

Cherry-pick of 37ceb09 has failed:

On branch mergify/bp/version-15-hotfix/pr-44302
Your branch is ahead of 'origin/version-15-hotfix' by 2 commits.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit 37ceb09955.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   erpnext/accounts/doctype/payment_request/payment_request_list.js

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally