redo two projects as grid-card-item

This is feedback for gsoc/gsoc.beagleboard.io!11 (comment 17242)

projects/index.rst

@@ -11,20 +11,25 @@ GSoC over the previous years is given in the section that follows.
 2023
 ====
 
-Replace Gbridge   
-****************
+.. grid:: 1 2 2 2
 
-.. grid:: 2
-
-      .. grid-item::
-         :columns: 9
+      .. grid-item-card:: Replace GBridge
 
          .. youtube:: tCtehnXODW8
             :width: 100%
+         ^^^
 
-      .. grid-item::
-         :columns: 3
+         The project aims to eliminate GBridge and merge its functionality into greybus (linux driver) and cc1352 driver. The subtasks I have identified are the following:
+         
+         1. Allow Greybus Linux driver to directly communicate with cc1352
+         2. Move SVC and APBridge roles into cc1352
+         3. Eliminate the need for GBridge
+
+         **Contributor:** Ayush Singh
+
+         **Mentors:** Jason Kridner, Vaishnav Achath
 
+         +++
          .. button-link:: https://summerofcode.withgoogle.com/programs/2023/projects/iTfGBkDk 
             :color: info
             :shadow:
@@ -39,26 +44,20 @@ Replace Gbridge
                      
             proposal
 
-+----------------------+--------------------------------+
-| GSoC Contributor     | Mentor                         |
-+======================+================================+
-| Ayush Singh          | Jason Krinder, Vaishnav Achath |
-+----------------------+--------------------------------+
 
-Building an LLVM Backend for PRU
-*********************************
-
-.. grid:: 2
-
-      .. grid-item::
-         :columns: 9
+      .. grid-item-card:: Building an LLVM Backend for PRU
 
          .. youtube:: f4LVIW9VlrM
             :width: 100%
+         ^^^
 
-      .. grid-item::
-         :columns: 3
+         This project intends to introduce LLVM support for PRU, to enable us to use clang rather than pru-gcc. As Clang provides extremely clear and simple diagnoses and is considerably faster and requires less memory, it will be beneficial. The LLVM support will offer greater tooling, compatibility, and optimization. I will therefore build the LLVM Backend for PRU.
+
+         **Contributor:** Khushi Balia
+         
+         **Mentors:** Vedant Paranjape, Shreyas Atre, Abhishek Kumar
 
+         +++
          .. button-link:: https://summerofcode.withgoogle.com/programs/2023/projects/nfmrQ9LL  
             :color: info
             :shadow:
@@ -73,12 +72,6 @@ Building an LLVM Backend for PRU
                      
             proposal
 
-+----------------------+------------------------------------------------+
-| GSoC Contributor     | Mentor                                         |
-+======================+================================================+
-| Khushi Balia         | Vedant Paranjape, Shreyas Atre, Abhishek Kumar |
-+----------------------+------------------------------------------------+
-
 Zephyr on R5/M4F
 *****************