Adjust CodeEditor container height and save button margin on connections dialog (#1520)

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Fixes OPS-2910


<img width="814" height="672" alt="image"
src="https://github.com/user-attachments/assets/830f91ce-b6b0-47b4-830b-744cb62b978a"
/>


based on current usage of json field, inside step settings it always
uses input with mentions, so this change doesn't affect step settings

Author: rSnapkoOpenOps

packages/react-ui/src/app/features/builder/block-properties/auto-properties-form.tsx

@@ -219,7 +219,7 @@ const selectFormComponentForProperty = ({
               disabled={disabled}
             ></BuilderJsonEditorWrapper>
           ) : (
-            <div className="h-48">
+            <div className="flex-1 h-[116px] border rounded-sm pr-4 pt-4">
               <CodeEditor
                 value={field.value}
                 readonly={disabled}

packages/react-ui/src/app/features/connections/components/create-edit-connection-dialog-content.tsx

@@ -300,7 +300,7 @@ const CreateEditConnectionDialogContent = ({
               />
             )}
 
-            <DialogFooter className="mt-[60px]">
+            <DialogFooter className="mt-5">
               <Button
                 onClick={(e) => form.handleSubmit(() => mutate())(e)}
                 loading={isPending}