✨ Improve documentation for source analysis mode (#1654)

<img width="1240" alt="Screenshot 2024-01-04 at 12 05 39 PM"
src="https://github.com/konveyor/tackle2-ui/assets/11218376/4618ca64-e961-4f05-b9c6-59e392247e20">

Signed-off-by: ibolton336 <ibolton@redhat.com>

client/public/locales/en/translation.json

@@ -486,6 +486,12 @@
     "required": "This field is required."
   },
   "wizard": {
+    "alert": {
+      "sourceMode": {
+        "title": "Source Code Mode",
+        "description": "This mode focuses on analyzing the source code. Language-specific dependency configurations, like in Java's POM files, are not the primary focus and may not be fully analyzed."
+      }
+    },
     "composed": {
       "enable": "Enable {{what}}",
       "excluded": "Excluded {{what}}",

client/src/app/pages/applications/analysis-wizard/set-mode.tsx

@@ -85,6 +85,15 @@ export const SetMode: React.FC<ISetMode> = ({ isSingleApp, isModeValid }) => {
           <p>{t("wizard.label.notAllAnalyzableDetails")}</p>
         </Alert>
       )}
+      {mode === "source-code" && (
+        <Alert
+          variant="info"
+          isInline
+          title={t("wizard.alert.sourceMode.title")}
+        >
+          <p>{t("wizard.alert.sourceMode.description")}</p>
+        </Alert>
+      )}
       {mode === "binary-upload" && <UploadBinary />}
     </Form>
   );