I have a theorem in my book which says if $(f_n)$ is a sequence of functions uniformly converging on $A$ to $f$, and is continuous at some point $c \in A$, then $f$ is also continuous at this point $c$.
Does this also hold for the case in the title of this question?
This is not true. You can have a sequence of discontinuous functions which converge uniformly to a continuous function. Consider the functions $f_n : \mathbb{R} \to \mathbb{R}$, $$f_n(x) = \begin{cases} \frac{1}{n} & x \geq 0\\ 0 & x < 0.\end{cases}$$
Note that each $f_n$ is discontinuous at zero, but $f_n$ converges uniformly to the constant zero function (which is continuous).
In fact, one can construct a family of functions $f_n$ which are nowhere continuous, yet converge uniformly to a continuous function. For example, $f_n = \frac{1}{n}\chi_{\mathbb{Q}}$.