Use grid-item-card for project ideas

This is a response to
!9 (comment 17217)

ideas/index.rst

@@ -34,18 +34,33 @@ in the physical world.
    Students are expeced to go through the list of ideas below, and check out the corresponding forum link for additional
    discussions around the idea.
 
-.. table::
+.. grid:: 1 2 2 2
+
+   .. grid-item-card:: Low-latency I/O RISC-V CPU core in FPGA fabric
+      :link: https://forum.beagleboard.org/t/low-latency-risc-v-i-o-cpu-core/37156
+
+      FPGA gateware improvements
+      ^^^
+
+      BeagleV-Fire features RISC-V 64-bit CPU cores and FPGA fabric. In that FPGA fabric, we'd like to
+      implement a RISC-V 32-bit CPU core with operations optimized for low-latency GPIO. This is similar
+      to the programmable real-time unit (PRU) RISC cores popularized on BeagleBone Black.
+
+      +++
+      :bdg-success:`Medium complexity` :bdg-success-line:`Medium size`
+
+   .. grid-item-card:: Update beagle-tester for mainline regression testing
+      :link: https://forum.beagleboard.org/t/update-beagle-tester-for-cape-mikrobus-new-board-and-upstream-testing/37279
+
+      Linux kernel improvements
+      ^^^
+
+      Utilize the ``beagle-tester`` application and ``Buildroot`` along with device-tree and udev symlink concepts within
+      the OpenBeagle GitLab continuous integration server context to create a regression test suite for the Linux kernel
+      and device-tree overlays on various Beagle computers.
 
-+---------------------------+-------------------------------------+----------------------------------+------------------------------------------------------------------+----------------------------------------------------------------------+
-|          Category         |                Title                |          Size/Complexity         |                            Description                           |                                 Forum                                |
-+===========================+=====================================+==================================+==================================================================+======================================================================+
-| Linux kernel improvements | Beaglebone Cape compatibility layer | :bdg-danger-line:`Large size`    | Update the cape compatibility layer for BeagleBone Black, AI-64, | `Discuss <https://forum.beagleboard.org/tags/c/gsoc/13/gsoc-ideas>`_ |
-|                           |                                     | :bdg-success:`Medium complexity` | and newer boards to support more kernel versions.                |                                                                      |
-+---------------------------+-------------------------------------+----------------------------------+------------------------------------------------------------------+----------------------------------------------------------------------+
-|                           |                                     |                                  |                                                                  |                                                                      |
-+---------------------------+-------------------------------------+----------------------------------+------------------------------------------------------------------+----------------------------------------------------------------------+
-|                           |                                     |                                  |                                                                  |                                                                      |
-+---------------------------+-------------------------------------+----------------------------------+------------------------------------------------------------------+----------------------------------------------------------------------+
+      +++
+      :bdg-success:`Medium complexity` :bdg-danger-line:`Large size`
 
 .. tip::