[client] Declare GTK4/WebKitGTK runtime deps for the Linux UI packages (#6893)

The 0.75.0 UI is built against GTK 4.14 (Ubuntu 24.04 runner) and Wails
v3 calls gdk_monitor_get_scale (GTK 4.14+) unconditionally, but the
deb/rpm packages only depended on netbird. On distros shipping an older
GTK4 (Ubuntu 22.04, RHEL 9, openSUSE Leap 15.6) the package installed
fine and then died at startup with a symbol lookup error (#6890).

Declare the real runtime dependencies so package managers reject the
install up front instead:

- deb: libgtk-4-1 (>= 4.14) and libwebkitgtk-6.0-4
- rpm: rich (boolean) dependencies that accept both the Fedora/RHEL and
the SUSE package names, with the 4.14 floor: (gtk4 >= 4.14 or libgtk-4-1
>= 4.14) (webkitgtk6.0 or libwebkitgtk-6_0-4)

Rich deps are supported by dnf and zypper (RPM 4.13+); the pinned
goreleaser v2.16.0 -> nfpm v2.46.3 -> rpmpack v0.7.1 chain passes the
parenthesized form through verbatim. On RHEL/Alma/Rocky 10 the
webkitgtk6.0 package comes from EPEL, which becomes an install
prerequisite for the UI.

The wails3 packaging config (client/ui/build/linux/nfpm/nfpm.yaml, local
dev packaging only) is kept in sync.

## Describe your changes

## Issue ticket number and link

## Stack

<!-- branch-stack -->

### Checklist
- [x] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> By submitting this pull request, you confirm that you have read and
agree to the terms of the [Contributor License
Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).

## Documentation
Select exactly one:

- [ ] I added/updated documentation for this change
- [x] Documentation is **not needed** for this change (explain why)

### Docs PR URL (required if "docs added" is checked)
Paste the PR link from https://github.com/netbirdio/docs here:

https://github.com/netbirdio/docs/pull/__

<!-- codesmith:footer -->
---
<a
href="https://app.blacksmith.sh/netbirdio/codesmith/netbird/pr/6893"><picture><source
media="(prefers-color-scheme: dark)"
srcset="https://pr-comments-assets.blacksmith.sh/codesmith/view-with-codesmith-dark-v2.svg"><source
media="(prefers-color-scheme: light)"
srcset="https://pr-comments-assets.blacksmith.sh/codesmith/view-with-codesmith-light-v2.svg"><img
alt="View with [code]smith"
src="https://pr-comments-assets.blacksmith.sh/codesmith/view-with-codesmith-dark-v2.svg"></picture></a>
<a
href="https://backend.blacksmith.sh/track/enable-autofix?expires=1787575510&installation_model_id=427504&pr_number=6893&repository=netbirdio%2Fnetbird&return_to=https%3A%2F%2Fgithub.com%2Fnetbirdio%2Fnetbird%2Fpull%2F6893&signature=93b4fc344fe4f4e6b781887386bfbae1a309007205c7b2ab061b58d89e29b9a8"><picture><source
media="(prefers-color-scheme: dark)"
srcset="https://pr-comments-assets.blacksmith.sh/codesmith/autofix-with-codesmith-dark.svg"><source
media="(prefers-color-scheme: light)"
srcset="https://pr-comments-assets.blacksmith.sh/codesmith/autofix-with-codesmith-light.svg"><img
alt="Autofix with [code]smith"
src="https://pr-comments-assets.blacksmith.sh/codesmith/autofix-with-codesmith-dark.svg"></picture></a>
<sup>Need help on this PR? Tag <code>@codesmith-bot</code> with what you
need. Autofix is disabled.</sup>

<!-- codesmith:autofix:disabled -->
<!-- /codesmith:footer -->

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Bug Fixes**
* Improved Linux package installation compatibility by requiring
supported GTK 4.14 and WebKit components.
* Updated Debian and RPM packages to recognize equivalent
platform-specific library names.
* Refined Linux package metadata to support installation across a wider
range of distributions.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.goreleaser_ui.yaml

@@ -93,7 +93,9 @@ nfpms:
       - src: client/ui/build/appicon.png
         dst: /usr/share/pixmaps/netbird.png
     dependencies:
-      - netbird
+      - netbird (>= 0.75.0)
+      - libgtk-4-1 (>= 4.14)
+      - libwebkitgtk-6.0-4
 
   - maintainer: Netbird <dev@netbird.io>
     description: Netbird client UI.
@@ -114,7 +116,9 @@ nfpms:
       - src: client/ui/build/appicon.png
         dst: /usr/share/pixmaps/netbird.png
     dependencies:
-      - netbird
+      - netbird >= 0.75.0
+      - (gtk4 >= 4.14 or libgtk-4-1 >= 4.14)
+      - (webkitgtk6.0 or libwebkitgtk-6_0-4)
 
     rpm:
       signature:

client/ui/build/linux/nfpm/nfpm.yaml

@@ -26,17 +26,17 @@ contents:
 
 # Default dependencies for the GTK4 + WebKitGTK 6.0 stack (Ubuntu 24.04+ / Debian 13+)
 depends:
-  - libgtk-4-1
+  - libgtk-4-1 (>= 4.14)
   - libwebkitgtk-6.0-4
   - xdg-utils
 
 # Distribution-specific overrides for different package formats
 overrides:
-  # RPM packages for Fedora / RHEL / AlmaLinux / Rocky Linux
+  # RPM packages for Fedora / RHEL / AlmaLinux / Rocky Linux / openSUSE
   rpm:
     depends:
-      - gtk4
-      - webkitgtk6.0
+      - (gtk4 >= 4.14 or libgtk-4-1 >= 4.14)
+      - (webkitgtk6.0 or libwebkitgtk-6_0-4)
       - xdg-utils
 
   # Arch Linux packages