feat: implement add clipboard functionality for cause URL

[tudoramariei]

Closes #597

[Copilot]

Pull request overview

This PR adds clipboard functionality to copy cause URLs, allowing users to easily share cause links. The implementation includes a reusable copy-to-clipboard component and refactors the get_cause method signature across view classes for consistency.

Key changes:

• New icon_and_text.html template component for copying URLs with an icon and text display
• Integration of the clipboard component in the form title header alongside existing action buttons
• Standardization of the get_cause method signature to use keyword-only arguments across all view classes

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
backend/templates/v2/ngo-account/components/form-title.html	Adds copy-to-clipboard button next to "View public page" button, includes minor formatting changes to SVG path elements
backend/templates/v2/components/copy-to-clipboard/icon_and_text.html	New template component that extends the base clipboard component, displays a link icon with customizable text
backend/donations/views/ngo_account/my_organization.py	Updates NgoMainCauseView.get_cause to match new signature with keyword-only parameters, removes redundant cause assignment (now handled by parent class)
backend/donations/views/ngo_account/causes.py	Adds get_absolute_cause_url helper method and updates get_cause signature in NgoCauseCommonView and its child classes (NgoCauseCreateView, NgoCauseEditView)

Comments suppressed due to low confidence (1)

backend/donations/views/ngo_account/causes.py:191

• Illegal class 'NoneType' raised; will result in a TypeError being raised instead.

        raise None

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