Merge branch 'fix-filter-input-alignment' into 'master'

Fix filter input alignment

## What does this MR do?
If you carefully observe the filter inputs on the [issues page](https://gitlab.com/gitlab-org/gitlab-ce/issues) and the [projects dashboard page](https://gitlab.com/dashboard/projects), you will notice that those input fields are actually a few pixels lower than the UI elements beside them (More so for the projects dashboard page than the issues page). This MR fixes that alignment issue so that they are aligned to the buttons on their right.

## Are there points in the code the reviewer needs to double check?
Shouldn't be

## Why was this MR needed?
Improves the existing UI

## What are the relevant issue numbers?
Closes #20559 

## Screenshots (if relevant)
Before
![Screen_Shot_2016-08-02_at_5.42.28_PM](/uploads/8530fc6c9ce20f28ae74b950bc1bd6be/Screen_Shot_2016-08-02_at_5.42.28_PM.png)

After
![Screen_Shot_2016-08-02_at_5.49.28_PM](/uploads/ec20e68045c2190aec52e5f059d1a3bc/Screen_Shot_2016-08-02_at_5.49.28_PM.png)

After (with color markings)
![Screen_Shot_2016-08-02_at_5.49.25_PM](/uploads/6e032b1ffb438018f6fadf294c3cebd3/Screen_Shot_2016-08-02_at_5.49.25_PM.png)

Before
![Screen_Shot_2016-08-02_at_5.41.19_PM](/uploads/11a3c30d0290328bb3298bc392facf9f/Screen_Shot_2016-08-02_at_5.41.19_PM.png)

After
![Screen_Shot_2016-08-02_at_5.49.47_PM](/uploads/f8e20346a19dc67cc3e54788dc0e72fb/Screen_Shot_2016-08-02_at_5.49.47_PM.png)

After (with color markings)
![Screen_Shot_2016-08-02_at_5.49.58_PM](/uploads/1839d5681ab2f3518609004511af86a6/Screen_Shot_2016-08-02_at_5.49.58_PM.png)

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- Tests
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5633

CHANGELOG

@@ -26,6 +26,7 @@ v 8.11.0 (unreleased)
   - Nokogiri's various parsing methods are now instrumented
   - Add simple identifier to public SSH keys (muteor)
   - Add a way to send an email and create an issue based on private personal token. Find the email address from issues page. !3363
+  - Fix filter input alignment (ClemMakesApps)
   - Include old revision in merge request update hooks (Ben Boeckel)
   - Add build event color in HipChat messages (David Eisner)
   - Make fork counter always clickable. !5463 (winniehell)

app/assets/stylesheets/framework/nav.scss

@@ -182,7 +182,6 @@
 
     > form {
       display: inline-block;
-      margin-top: -1px;
     }
 
     .icon-label {
@@ -193,7 +192,6 @@
       height: 35px;
       display: inline-block;
       position: relative;
-      top: 2px;
       margin-right: $gl-padding-top;
 
       /* Medium devices (desktops, 992px and up) */