chore: fix three typos in comments and error message

- src/cdp/CDP.zig L1029 (was L780 in previous scan): "we dont' want" -> "we don't want"
- src/storage/sqlite/Pool.zig L101: test comment "single connetion" -> "single connection"
- src/storage/sqlite/Sqlite.zig L201: @compileError message "unsupport column type" -> "unsupported column type"

Comment / compile-time string only; no runtime behavior change.

src/cdp/CDP.zig

@@ -1026,7 +1026,7 @@ pub const BrowserContext = struct {
         // reserve 10 bytes for websocket header
         buf.appendSliceAssumeCapacity(&.{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 });
 
-        // -1  because we dont' want the closing brace '}'
+        // -1  because we don't want the closing brace '}'
         buf.appendSliceAssumeCapacity(msg[0 .. msg.len - 1]);
         buf.appendSliceAssumeCapacity(field);
         buf.appendSliceAssumeCapacity(session_id);

src/storage/sqlite/Pool.zig

@@ -98,7 +98,7 @@ pub fn release(self: *Pool, conn: Sqlite.Conn) void {
 
 const testing = @import("../../testing.zig");
 test "Sqlite: Pool" {
-    // :memory: _has_ to run with a single connetion in the pool, which isn't
+    // :memory: _has_ to run with a single connection in the pool, which isn't
     // that useful for testing. So we create a temp file.
 
     std.fs.cwd().deleteFile("/tmp/lightpanda_test.sqlite") catch {};

src/storage/sqlite/Sqlite.zig

@@ -198,7 +198,7 @@ const Statement = struct {
                 const data = c.sqlite3_column_text(stmt, @intCast(index));
                 return @as([*c]const u8, @ptrCast(data))[0..@intCast(len) :0];
             },
-            else => @compileError("unsupport column type: " ++ @typeName(T)),
+            else => @compileError("unsupported column type: " ++ @typeName(T)),
         };
     }