feat: update funding screen to match v60 design

[jvsena42]

Related to #873

FIGMA

This PR:

1. Replaces the Advanced button with a Manual Setup shortcut on the Funding screen, navigating directly to the external node connection flow
2. Updates the funding screen description text to match the latest Figma design
3. Updates all 15 locale translations accordingly

Preview

QA Notes

1. Navigate to the Funding screen (Spending Balance → Fund)
2. Verify the third button now shows "Manual Setup" with a pencil icon instead of "Advanced" with a share icon
3. Tap "Manual Setup" and confirm it navigates directly to the External Node connection screen (skipping the old Advanced screen)
4. Verify the description text reads "The easiest option is to use your Bitkit savings or send bitcoin from a different wallet."
5. Switch device language to a supported locale (e.g., Spanish, Portuguese, German) and verify the updated text and button label are translated

[claude]

Duplicate changelog entry for #863. The ### Changed section now has two identical lines for #863 after this insertion.

bitkit-android/CHANGELOG.md

Lines 26 to 28 in bb80482

	- Replace Advanced button with Manual Setup shortcut on Funding screen #885
	- Unified send flow with payment method switcher, details toggle, Lightning support for BIP21 payments, and improved fee rate defaults #863
	- Settings redesigned with tabbed navigation (General/Security/Advanced) with swipe support #857

Per CLAUDE.md: "NEVER add multiple changelog lines for the same PR — summarize all changes in a single concise entry" and "ALWAYS place new entries at the top of their category section (newest first)".

The new entry should be placed at the top of the ### Changed section, and the duplicate #863 line should be removed.

Suggested change

	- Unified send flow with payment method switcher, details toggle, Lightning support for BIP21 payments, and improved fee rate defaults #863
	- Replace Advanced button with Manual Setup shortcut on Funding screen #885
	- Unified send flow with payment method switcher, details toggle, Lightning support for BIP21 payments, and improved fee rate defaults #863