Mobile Improvements

[beafialho]

I tried the test site on mobile, and have addressed some inconsistencies that are critical for launch. I feel like some of the issues are duplicated but didn't want to miss any.

• #180

Test Site	Mockup

• Global nav bar should stick to the top of the screen when we scroll, both when menus are open or when they're not #181

RPReplay_Final1641469536.MP4

RPReplay_Final1641469940.MP4

• #182

RPReplay_Final1641469743.MP4

• There are two magnifying glass icons in the Search field, there should only be one on the right with 29px padding #183

Test Site	Mockup

• Local nav bar looking off as we scroll #184

Test Site	Mockup
	.

• Releases and Events stroke color isn't accurate. See right colors here. #185

Test Site	Mockup

Test Site	Mockup

• Stroke and pagination elements should be centered in all Category pages #186

Test Site	Mockup

• In the Local nav bar, News and Categories should be horizontally aligned

Test Site	Mockup

• Footer links should be left-aligned

Test Site	Mockup

cc: @kellychoffman

[iandunn]

In the Local nav bar, News and Categories should be horizontally aligned

#134

Footer links should be left-aligned

WordPress/wporg-mu-plugins#44

[tellyworth]

Removing the milestone from this issue as I've split all the remaining ones out into separate issues.