fix(docs): make Linux tar log-collection commands actually work

Closes #16.

The Linux tar commands in 'Gathering Warp Logs' fail with 'Cannot stat:
No such file or directory' because the shell expands the warp.log* /
warp_preview.log* glob in the user's pwd, not in the directory passed
to -C. As reported in the issue, this leaves users on Linux unable to
follow the logs instructions as written.

Switch to GNU tar's own globbing: quote the pattern so the shell leaves
it alone, and pass --wildcards so tar expands it inside -C. Linux
distros ship GNU tar as 'tar' by default, so this works out of the box
on the Linux platform this tab targets.

Also normalize the indentation in the Linux :::caution RUST_LOG block
to the 4-space indent already used by the macOS and Windows tabs (the
Linux block had inconsistent indent on a few lines).

Co-Authored-By: Oz <oz-agent@warp.dev>

Author: hongyi-chen

src/content/docs/support-and-community/troubleshooting-and-support/sending-us-feedback.mdx

@@ -158,27 +158,31 @@ Warp's logs and crash reports _**do not**_ contain any console input or output.
     Run the following to zip the Warp logs to your home directory:
 
     ```bash
-    tar -czf ~/warp-logs.tar.gz -C ~/.local/state/warp-terminal warp.log*
+    tar -czf ~/warp-logs.tar.gz \
+      -C ~/.local/state/warp-terminal \
+      --wildcards 'warp.log*'
     ```
 
     **Warp Preview logs on Linux**
 
     Run the following to zip the Warp Preview logs to your home directory:
 
     ```bash
-    tar -czf ~/warp_preview-logs.tar.gz -C ~/.local/state/warp-terminal-preview warp_preview.log*
+    tar -czf ~/warp_preview-logs.tar.gz \
+      -C ~/.local/state/warp-terminal-preview \
+      --wildcards 'warp_preview.log*'
     ```
 
     :::caution
     If your issue is graphical (e.g. no display of windows) or a crash, please run Warp with the following command to capture more log information:
 
     ```bash
-# Run if Warp on Linux is installed
+    # Run if Warp on Linux is installed
     RUST_LOG=wgpu_core=info,wgpu_hal=info MESA_DEBUG=1 EGL_LOG_LEVEL=debug warp-terminal
-    
+
     # Run if Warp Preview on Linux is installed
     RUST_LOG=wgpu_core=info,wgpu_hal=info MESA_DEBUG=1 EGL_LOG_LEVEL=debug warp-terminal-preview
-```
+    ```
     :::
   </TabItem>
 </Tabs>