CB-5549. Added ability to configure server property for Root URI (#2868)

* CB-5549. Added ability to configure server property for Root URI

* CB-5549. Added new SQL

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Co-authored-by: Daria Marutkina <125263541+dariamarutkina@users.noreply.github.com>
Co-authored-by: Alexander Skoblikov <aleksandr.skoblikov@dbeaver.com>

config/sample-databases/SQLiteConfiguration/cloudbeaver.conf

@@ -6,7 +6,7 @@
         contentRoot: "web",
         driversLocation: "drivers",
 
-        rootURI: "/",
+        rootURI: "${CLOUDBEAVER_ROOT_URI:/}",
         serviceURI: "/api/",
 
         productSettings: {

server/test/io.cloudbeaver.test.platform/workspace/conf/cloudbeaver.conf

@@ -7,7 +7,7 @@
         contentRoot: "workspace/web",
         driversLocation: "../../../deploy/",
 
-        rootURI: "/",
+        rootURI: "${CLOUDBEAVER_ROOT_URI:/}",
         serviceURI: "/api/",
 
         productSettings: {},