[CrOS cellular] update start scanning button width

Before this CL start scanning button width was small in languages like
German, resulting in text being two lined. This CL increases the width
of start scanning button and updates use camera again text.

Screenshot: https://screenshot.googleplex.com/52x3U5R4ttwgjHb.png
            https://screenshot.googleplex.com/7QzcQmDNZ8L3yVY.png


Bug: 1203543
Change-Id: Ib3c216d4e0238d7ad24fd55204f45421f0fb79e9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2880879
Reviewed-by: Azeem Arshad <azeemarshad@chromium.org>
Commit-Queue: Nnamdi Theodore Johnson-kanu <tjohnsonkanu@google.com>
Cr-Commit-Position: refs/heads/master@{#880570}
diff --git a/chrome/app/chromeos_strings.grdp b/chrome/app/chromeos_strings.grdp
index f659159..ab39e8d 100644
--- a/chrome/app/chromeos_strings.grdp
+++ b/chrome/app/chromeos_strings.grdp
@@ -337,7 +337,7 @@
     Activation code detected
   </message>
   <message name="IDS_CELLULAR_SETUP_ESIM_PAGE_SCAN_QR_CODE_USE_CAMERA_AGAIN" desc="Label for button informing the user to click to use the camera to rescan for QR codes.">
-    use camera again
+    Use camera again
   </message>
   <message name="IDS_CELLULAR_SETUP_ESIM_PAGE_SCAN_QR_CODE_ERROR" desc="Label informing the user that there was an error detecting activation code.">
     Error detecting code
diff --git a/chrome/app/chromeos_strings_grdp/IDS_CELLULAR_SETUP_ESIM_PAGE_SCAN_QR_CODE_USE_CAMERA_AGAIN.png.sha1 b/chrome/app/chromeos_strings_grdp/IDS_CELLULAR_SETUP_ESIM_PAGE_SCAN_QR_CODE_USE_CAMERA_AGAIN.png.sha1
index bd84a3ad..fad07d1 100644
--- a/chrome/app/chromeos_strings_grdp/IDS_CELLULAR_SETUP_ESIM_PAGE_SCAN_QR_CODE_USE_CAMERA_AGAIN.png.sha1
+++ b/chrome/app/chromeos_strings_grdp/IDS_CELLULAR_SETUP_ESIM_PAGE_SCAN_QR_CODE_USE_CAMERA_AGAIN.png.sha1
@@ -1 +1 @@
-770be185e26dd97739b50680a9ea92f977e7b1e2
\ No newline at end of file
+3ca968f6f61bfaeb331f150257e6adea3c975d30
\ No newline at end of file
diff --git a/ui/webui/resources/cr_components/chromeos/cellular_setup/activation_code_page.html b/ui/webui/resources/cr_components/chromeos/cellular_setup/activation_code_page.html
index e4801a8..62f5983 100644
--- a/ui/webui/resources/cr_components/chromeos/cellular_setup/activation_code_page.html
+++ b/ui/webui/resources/cr_components/chromeos/cellular_setup/activation_code_page.html
@@ -174,6 +174,13 @@
       #pageBody {
         margin-top: -20px;
       }
+
+      #startScanningButton {
+        max-width: 470px;
+        min-width: 345px;
+        text-align: center;
+        width: auto;
+      }
     </style>
     <base-page>
       <div slot="page-body" id="pageBody" class="animate">