UI M1 fixes

[atorresveiga]

Closes: #11603

Description

This PR fixes some design issues detected during the beta testing of M1

• The font style should be bold in the Add shipping screen
• The Remove shipping from order should be red and appear on top of the Add Shipping button
• Change between Add Shipping or Edit Shipping depending on the flow

Testing instructions

TC1

1. Open the app
2. Navigate to the orders tab
3. Add a new order (+)
4. Add a product to enable the shipping lines
5. Add a shipping line
6. Check that the editable text of the shipping fields is displayed in bold font style
7. Check that the screen title and button (at the bottom of the screen) display Add Shipping
8. Save the shipping line

TC2

1. Using the shipping line from TC1
2. With the order on create/edit mode, tap on the shipping line
3. Check that the screen title and button (at the bottom of the screen) display Edit Shipping
4. Check that the style of the remove button is outlined and using the color red
5. Check that the editable text of the shipping fields is displayed in bold font style

Images/gif

Add Screen	Edit Screen

• I have considered if this change warrants release notes and have added them to RELEASE-NOTES.txt if necessary. Use the "[Internal]" label for non-user-facing changes.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce Android
	Flavor	Jalapeno
	Build Type	Debug
	Commit	d89854b
	Direct Download	woocommerce-prototype-build-pr11605-d89854b.apk

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 14.28571% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 40.22%. Comparing base (691b6cb) to head (d89854b).

Files	Patch %	Lines
...ers/creation/shipping/AmountBigDecimalTextField.kt	0.00%	4 Missing ⚠️
...oocommerce/android/ui/compose/component/Buttons.kt	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##              trunk   #11605      +/-   ##
============================================
- Coverage     40.22%   40.22%   -0.01%     
- Complexity     5204     5206       +2     
============================================
  Files          1089     1089              
  Lines         63518    63521       +3     
  Branches       8722     8723       +1     
============================================
- Hits          25551    25549       -2     
- Misses        35660    35665       +5     
  Partials       2307     2307              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.