[UX] Consolidate menu bars

- update branding mark unit tests
- fix header spacing at smallest breakpoint
- update custom branding functional test
- update line chart functional test ticks to account for more
ticks visisble with larger height of viz area
- update release notes

Signed-off-by: Josh Romero <[email protected]>

Dockerfile

@@ -11,7 +11,7 @@ RUN apt-get update && \
     rm -rf /var/lib/apt/lists/*
 
 # Specify the version of Chrome that matches the version of chromedriver in the package.json.
-# A list of Chrome versions can be found here: 
+# A list of Chrome versions can be found here:
 # https://www.ubuntuupdates.org/package/google_chrome/stable/main/base/google-chrome-stable
 ARG CHROME_VERSION=91.0.4472.114-1
 RUN curl -sSL https://dl.google.com/linux/linux_signing_key.pub | apt-key add - \

release-notes/opensearch-dashboards.release-notes-2.0.0.md

@@ -13,6 +13,9 @@
 #### Disable telemetry by default
 * Fixes search usage telemetry ([#1427](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/1427))
 
+#### Redesign global header
+* [UX] Consolidate menu bars ([#1586])(https://github.com/opensearch-project/OpenSearch-Dashboards/pull/1586))
+
 #### Deprecations
 * Deprecates non-inclusive config names ([#1467](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/1467))
 * Removes UI Framework KUI doc site ([#1379](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/1379))

src/core/public/_variables.scss

@@ -1,3 +1,3 @@
 @import "@elastic/eui/src/global_styling/variables/header";
 
-$osdHeaderOffset: $euiHeaderHeightCompensation * 2;
+$osdHeaderOffset: $euiHeaderHeightCompensation;