ci: Add screenshot validation and navigation bar test

* Introduced screenshot validation using `Remote Weston Capture Screenshot`
  and `Remote Weston Check Screenshot` keywords.
* Implemented a new test: `Test Check Navigation Bar` to verify navigation
  bar transitions using screenshots.
* Updated dependencies in `keywords_common.robot` to include `DocTest.VisualTest`.

Author: psaavedra

.ci/robot_framework/images/home-screen.png

@@ -1,5 +1,9 @@
+*** Variables ***
+${BASELINE_IMAGES_PATH}    /app/robot_framework/images/
+
 *** Settings ***
 Library    Collections
+Library    DocTest.VisualTest
 Library    OperatingSystem
 Library    ../libs/TestUtils.py
 
@@ -31,6 +35,18 @@ Get Remote Memory Used
     ${value}=    Evaluate    float(${stdout}[0])
     RETURN    ${value}
 
+Remote Weston Capture Screenshot
+    [Arguments]    ${capture_name}
+
+    ${TEST_BOARD_IP}    Get Environment Variable    TEST_BOARD_IP
+    SSH Command    ${TEST_BOARD_IP}    rm -rf wayland-screenshot-*.png && export XDG_RUNTIME_DIR=/run/user/1000 WAYLAND_DISPLAY=wayland-1 && weston-screenshooter
+    Run    scp -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no root@%{TEST_BOARD_IP}:~/wayland-screenshot-*.png ${capture_name}
+
+Remote Weston Check Screenshot
+    [Arguments]    ${image}
+    Remote Weston Capture Screenshot    ${image}
+    Compare Images   ${BASELINE_IMAGES_PATH}/${image}    ${image}    threshold=0.0100
+
 Webdriver Remote Start
     [Arguments]    @{other_params}
     [Timeout]      2 minutes
@@ -57,4 +73,3 @@ Webdriver Remote Stop
     Close All Browsers
     SSH Webdriver Remote Stop    ${TEST_BOARD_IP}
     SSH Force Kill    ${TEST_BOARD_IP}    cog
-

.ci/robot_framework/images/init-screen.png

@@ -0,0 +1,54 @@
+*** Variables ***
+${INIT_SCREEN_IMAGE}    init-screen.png
+${HOME_SCREEN_IMAGE}    home-screen.png
+${SEARCH_SCREEN_IMAGE}    search-screen.png
+${SEARCH_NAVIGATION_SCREEN_IMAGE}    search-navigation-screen.png
+
+*** Settings ***
+Test Timeout    60 seconds
+
+Library    ../libs/TestUtils.py
+
+Resource   variables.robot
+Resource   keywords_common.robot
+
+*** Test Cases ***
+Test Check Navigation Bar
+    [Tags]    ignoreonfail
+
+    ${TEST_BOARD_IP}    Get Environment Variable    TEST_BOARD_IP
+
+    SSH Command    ${TEST_BOARD_IP}    sed -i 's|ExecStart=/usr/bin/weston --continue-without-input --modules=systemd-notify.so|ExecStart=/usr/bin/weston --continue-without-input --modules=systemd-notify.so --debug|' /lib/systemd/system/weston.service
+    SSH Command    ${TEST_BOARD_IP}    systemctl daemon-reload && systemctl restart weston
+    Wait Until Keyword Succeeds    20x   1000ms    Remote Weston Check Screenshot    ${INIT_SCREEN_IMAGE}
+
+    # Open Home
+    SSH Command    ${TEST_BOARD_IP}    /root/scripts/touch-one-finger-gesture.py --duration 1 --steps 1 --delay-on-touch-up 0 215 15 215 15
+    Wait Until Keyword Succeeds    20x   1000ms    Remote Weston Check Screenshot    ${HOME_SCREEN_IMAGE}
+
+    # Open Search
+    SSH Command    ${TEST_BOARD_IP}   /root/scripts/touch-one-finger-gesture.py --duration 1 --steps 1 --delay-on-touch-up 0 275 15 275 15
+    Sleep    10s
+    SSH Command    ${TEST_BOARD_IP}    /root/scripts/touch-one-finger-gesture.py --duration 0.2 --steps 2 --delay-on-touch-up 0 90 300 90 300
+    Wait Until Keyword Succeeds    20x   1000ms    Remote Weston Check Screenshot    ${SEARCH_SCREEN_IMAGE}
+
+    # Click
+    SSH Command    ${TEST_BOARD_IP}    /root/scripts/touch-one-finger-gesture.py --duration 0.2 --steps 2 --delay-on-touch-up 0 90 90 90 90
+    Wait Until Keyword Succeeds    20x   1000ms    Remote Weston Check Screenshot    ${SEARCH_NAVIGATION_SCREEN_IMAGE}
+
+    # Navigation Back
+    SSH Command    ${TEST_BOARD_IP}    /root/scripts/touch-one-finger-gesture.py --duration 1 --steps 1 --delay-on-touch-up 0 345 15 345 15
+    Wait Until Keyword Succeeds    20x   1000ms    Remote Weston Check Screenshot    ${SEARCH_SCREEN_IMAGE}
+
+    # Navigation Forward
+    SSH Command    ${TEST_BOARD_IP}    /root/scripts/touch-one-finger-gesture.py --duration 1 --steps 1 --delay-on-touch-up 0 400 15 400 15
+    Wait Until Keyword Succeeds    20x   1000ms    Remote Weston Check Screenshot    ${SEARCH_NAVIGATION_SCREEN_IMAGE}
+
+    # Reload
+    SSH Command    ${TEST_BOARD_IP}    /root/scripts/touch-one-finger-gesture.py --duration 1 --steps 1 --delay-on-touch-up 0 470 15 470 15
+    Wait Until Keyword Succeeds    20x   1000ms    Remote Weston Check Screenshot    ${SEARCH_NAVIGATION_SCREEN_IMAGE}
+
+    # Terminate browser
+    SSH Command    ${TEST_BOARD_IP}    /root/scripts/touch-one-finger-gesture.py --duration 1 --steps 1 --delay-on-touch-up 0 595 15 595 15
+    Wait Until Keyword Succeeds    20x   1000ms    Remote Weston Check Screenshot    ${INIT_SCREEN_IMAGE}
+